Disaster Management MCQ Questions and Answers

1) National Institute of Disaster Management was inaugurated on …………

  1. September 23, 2002
  2. August 14, 2001
  3. October 16, 2003
  4. August 14, 2004


Answer: D) August 14, 2004

Explanation: National Institute of Disaster Management was inaugurated on August 14, 2004, by the Home Minister of India. NIDM is an institute which provides training and development programs to handle and manage the natural and man-made disaster in India. It is carried out on a national and regional basis. It was passed under the Disaster Management Act 2005 by India’s Government as a deemed university and institute of training and learning to tackle the disaster.


2) Head office of the National Institute of Disaster Management is situated in India’s city/ state?

  1. Kolkata
  2. New Delhi
  3. Hyderabad
  4. Manipur


Answer: B) New Delhi

Explanation: National Institute of Disaster Management is situated in New Delhi of India. NIDM is a short form of it, and it handles and manages the natural and human-made disasters in India. It is carried out on a national and regional basis.


3) When the situation of hazard arise?

  1. When there is the threat of natural calamity
  2. When there is a threat to the consequences of the disaster
  3. When there is a threat to property and lives from calamities
  4. All of the above


Answer: B) When there is a threat to property and lives from calamities.

Explanation: Hazard is called a situation where people threaten to lose their life and property by various means of reasons like natural calamities and human-made calamities. The hazardous situations can be like frustration, tension, illness inside a human, an accident at the workplace (injury, radiation effect, loss of body part). Loss of occupation( damage to crops, loss of job) and many more situations where humans threaten to lose their health and wealth.


4) Which one of the following is not a Natural Disaster?

  1. Volcano eruption
  2. Flood
  3. Blow-out
  4. Tsunami


Answer: Blow-out

Explanation: Blow-out means to blow the hazardous situation or calamities. It means to defeat a life taking situation very easily. Blow- out term is used when people and government can tackle a hazardous situation or come over disaster without any living being. For example, Weather forecasters give warning of cyclones, tornadoes, heavy rainfall, change in weather etc., to blow-out the situation.


5) Seismic waves cause disaster named as ………

  1. Nino
  2. Typhoon
  3. Tsunami
  4. hurricane


Answer: C) Tsunami

Explanation: Tsunami is caused by a seismic wave produced under the earth by an earthquake. The high potential wave produced due to landslide on the seafloor, breaking of rocks in the sea, and land slumping into the ocean triggers Tsunami’s highest waves.


6) Rolling effect along the earth’s surface affect produces a wave of an earthquake?

  1. L wave
  2. P wave
  3. S wave
  4. None of the above


Answer: C) S wave

Explanation: S wave, shear wave or secondary wave is one of the kinds of surface waves produced at the earthquake under the solid ground. These are the second waves to hit the seismograph (an instrument used to record the waves). It is called a transverse wave because its motion is perpendicular to the direction of wave propagation.


7) Where International Tsunami information center is located?

  1. Honolulu
  2. Hyderabad
  3. Goa
  4. Pondicherry


Answer: A) Honolulu

Explanation: International Tsunami Information center is located in Honolulu, USA. It was established in 1965 by the Intergovernmental Oceanographic Commission (IOC) of the UNESCO( United Nations Educational, Scientific and Cultural Organization). Its major work is to handle and monitor international Tsunami activities in the Pacific and other oceans. To provide suggestions to improve the communication, data networks, tsunami forecasting methods and information dissemination.


8) National Disaster Management authority comes under which ministry?

  1. Ministry of Pollution
  2. Ministry of Environment
  3. Ministry of Home Affairs
  4. Ministry of Foreign Affairs


Answer: C) Ministry of Home Affairs

Explanation: Ministry of Home Affairs handles the agency of National Disaster Management authority because the first motive of NDM is to handle the natural and human-made disaster as this disaster may result in loss of life of living beings and damage to movable and immovable properties of humans which affect their life and occupation.


9) In which of the following countries, hurricanes are common?

  1. India
  2. Sri Lanka
  3. Australia
  4. USA


Answer: D) USA

Explanation: Hurricanes are very common in the USA(United States of America).

When cyclones rotate anticlockwise in the northern hemisphere, they are called hurricanes or typhoons. Hurricanes are most common during the hurricane season of the Atlantic and Pacific oceans. Hurricane season starts from May 15 to November 30 in the Pacific Ocean and from June 1 to November 30 in the Atlantic Ocean. Some of the states most hit by hurricanes are Florida, Texas, Louisiana, North Carolina, South Carolina, Alabama etc.


10) Which is the calm part of a tropical cyclone?

  1. Eye
  2. Limb
  3. Periphery
  4. None


Answer: A) Eye

Explanation: In the center of the cyclone, there is a calm area where there is no storm and no rain, only light winds, which is called the eye of cyclone. When cyclone develops by winds blowing around the center of low atmospheric pressure, they can be clockwise or anticlockwise. The center part is depicted as an eye.


11) Where is the Tsunami Warning Center located in India?

  1. New Delhi
  2. Hyderabad
  3. Gujarat
  4. Kolkata


Answer: B) Hyderabad

Explanation: In India, the Tsunami Warning Center is situated in Hyderabad. It was established in 2007 by the Ministry of Earth Science, and it was called a Tsunami Early Warning System. ITEWS is operated by Indian National Centre for Ocean Information Services(INCOIS) and developed to predict the extreme danger and damage in real-time due to Tsunami.


12) Tsunami word is derived from which language word.

  1. Greek word
  2. Indian word
  3. French word
  4. Japanese word


Answer: D) Japanese word

Explanation: Tsunami word is derived from two Japanese words “tsu” means harbor, and “nami” means waves. Rather Tsunami is a Japanese word, but nowadays, it is used in English. Tsunami waves are different from tidal waves caused by gravitational forces of celestial bodies, the sun, the moon and the earth. Tsunami waves are the result of an earthquake or landslide under the sea and ocean.


13) Which option is the perfect answer to the Civil war?

  1. Kargil war
  2. World war II
  3. World war I
  4. Syrian War


Answer: D) Syrian war

Explanation: A peaceful protest in Syria against the president of Syria has turned into a full-scale civil war. People stand against president Bashar-al- Assad, who took over after his father’s death, Hafez, in 2000. People were complaining about high unemployment, corruption and lack of political freedom. The protest movement converted into a militarized rebellion, and more than 500,000 people were killed and missing in that civil war.


14) Find the following common factors of wildfire hazards.

  1. Volcanic eruption
  2. El-Nino
  3. Volcanic Lightning and thundering
  4. All of the above


Answer: D) All of the above

Explanation: Wildfire hazards are hazards that happen due to the dangerous wildfire in the forest( burning of shrubs, trees, leaf litter, grass, vegetarian etc. ).

Volcanic eruption, El-Nino, Volcanic Lightning and thundering, the explosion of an ignition source, and excessive temperature are common factors of wildfire hazards.


15) In North America bush fire is known as

  1. Brush fires
  2. Wildfire
  3. Volcano fire
  4. None of the above


Answer: B) Wild Fire

Explanation: Wildfire is known as a bush fire in North America. The burning of bushes ignites the fire to a great scale, which damages the forest. This disaster is uncountable in terms of loss of nature and it can be described under natural and human-made disaster.


16) The two atom bombs in World war II has been dropped on which of the following:-

  1. Hiroshima and Nagasaki in Japan
  2. Germany
  3. Italy
  4. Great Britain


Answer: A) Hiroshima and Nagasaki in Japan

Explanation: Hiroshima and Nagasaki in Japan are two cities that suffered from atom bomb attacks in World War II. Bombarding was made by the United States on August 6 and 9, 1945, with two nuclear weapons named B-29, which killed around 226,000 people suddenly after the attack and few due to the radiation effect.


17) In which year, a terrorist attack was made on the twin tower of the world trade center in the USA

  1. 1999
  2. 2008
  3. 2001
  4. 2005


Answer: C) 2001

Explanation: Twin tower bombarding is also known as the 9/11, 2001 attack on World Trade Centre(WTC) in New York, United States. This terrorist attack was made by the Wahhabi Terrorist group Al- Qaeda against the United States. Hijackers crashed one of American Airlines Flight 11at 8: 46 am into the northern face of the World Trade Centre North tower and second United Airlines Flight 175 at 9:03 am into WTC’s southern South Tower.


18) In which direction the wind of the tropical cyclone blows in the northern hemisphere.

  1. Straight forward
  2. Anticlockwise direction
  3. Clockwise direction
  4. In any direction


Answer: B) Anti-clockwise direction

Explanation: In the northern hemisphere, the wind of a tropical cyclone blows in an anticlockwise direction. The wind blows towards the low atmospheric pressure in a spiral formation and goes inward, which draw thunder clouds around the storm and create spiral rain bands and all it happens when the wind blows anticlockwise.


19) A deep burn destroys all layers of skin is termed as:-

  1. First-degree burn
  2. Second-degree burn
  3. Third Degree Burn
  4. None of these


Answer: C) Third Degree Burn

Explanation: When burn damage the layers of skin are called a third-degree burn. These deep layers of skin burn and damage fatty acids, muscles, tendons, and underlying bones. The destroyed part doesn’t show any sensation due to nerve endings damage, and it appears white and charred. Third-degree burns can be depicted as full-thickness burns.


20) According to the Indian Meteorological Department (IMD), the wind blows at which speed called a storm as ‘Super cyclone”?

  1. Above 200 km
  2. Above 110 km
  3. Above 220 km
  4. None of the above


Answer: C) Above 220 km.

Explanation: According to the Indian Meteorological Department (IMD), when the wind speed of a storm is above 220 km, it is considered a Super Cyclone. All over, standardize super cyclone wind speed above 260 km.


21) The extreme risk zone during a volcanic eruption is…………….

  1. At a distance Upto 100 Mtrs
  2. At a distance of 100-300 mtrs
  3. At a distance of 300mtrs- 3 km
  4. None of these


Answer: At a distance up to 100 meters

Explanation: During a volcanic eruption, lots of magma, ash, hot gases and other dangerous materials come out, which are harmful to humans around 100 meters of distance to the volcano. It leads merely up to death. So, the extreme risk zone during a volcanic eruption is at a distance of 100 meters.


22) Flow of volcanic mud is called as?

  1. Magma
  2. Lahars
  3. Lava
  4. None of the above


Answer: Lahars

Explanation: Lahars consist of fragments of rocks mixed with hot and cold water flows down the volcano. When intense rainfall occurs, the volcanic mud steeps down with a great force called Lahars, which bury the entire town and agricultural land. It is an Indonesian word that means mudflow ( the erosion of the volcano’s sediment rock).


23) The only active volcano in India is ……………..

  1. Volcano Baratang
  2. Barren Island volcano
  3. Volcano Etna
  4. None of the above


Answer: B) Barren Island volcano

Explanation: India’s only active volcano situated in Andaman and Nicobar is Barren Island Volcano. It is 354 km high island comes under the arc of active volcanoes extended between Sumatra and Burma. This volcano depth is about 2250 m, and it had its last volcanic eruption on December 8, 2020.


24) India’s total flood-prone area is up to……..

  1. 30%
  2. 20%
  3. 12%
  4. 10%


Answer: C) 12%

Explanation:

India’s flood prone area is up to 12% of the total land area, which is around 40 million hectares. India’s major flood-prone areas are as follows:-

  • Haryana
  • Punjab
  • Bihar
  • Assam
  • Manipur
  • Tripura
  • Orissa
  • Jharkhand
  • West Bengal

25) India’s total cyclone-prone area is ……….

  1. 15%
  2. 10%
  3. 8%
  4. 20%


Answer: C) 8%

Explanation: India’s total cycle prone area is 8 percent of the total land area. India’s land or areas affected by cyclone are the eastern coast(the Bay of Bengal and the Arabian Sea) and western coast (Gujarat and Maharashtra Coast). 80% of total cyclones are generated on the eastern coast of the Indian ocean. Two main seasons of a tropical cyclone are from May to June and mid of September to Mid December.


26) Zika virus is spread by which of the following:-

  1. Pig
  2. Fly
  3. Mosquito
  4. Rat


Answer: C) Mosquito

Explanation: Zika virus was firstly reported in Southeast Asia, the Pacific Islands and tropical Africa. It is transmitted through an infected mosquito named Aedes aegypti and Aedes albopictus. These mosquitoes also spread chikungunya and dengue, and they can bite during day and night.


27) Among which of the following Hazards and Disasters are classified?

  1. Cultural and Social
  2. Natural and Man-made
  3. Chemical and physical
  4. Human and Physical


Answer: B) Natural and Man-made

Explanation:

Hazards and Disasters are classified as Natural and Man-made.

Natural hazards and disasters occur due to natural phenomena like earthquakes, landslides, cyclones, Tsunami and volcanic activities, Climatological( wildfires, extreme temperature, drought), Hydrological( avalanches and floods) etc.

Man-made hazards and disasters occur due to human negligence like industrial pollution, factory explosions, chemical spills, dam failures, ionizing radiation, and toxic waste. Most dreadful man-made disaster are:-

  1. Bhopal gas leak tragedy
  2. The North Pacific Garbage Patch
  3. The Jilin Chemical Explosion
  4. The Gulf War Spill
  5. The Tennessee Coal Ash Spill

28) Select the correct full form of ISDR?

  1. International Sustainable Development Report
  2. International Strategy for Disaster Reduction
  3. International Significant Disaster Resources
  4. Intergovernmental Strategy for developing Recreation


Answer: B) International Strategy for Disaster Reduction

Explanation: Full form of ISDR is the International Strategy for Disaster Reduction. ISDR is a global framework established within the United Nations in 1999 under the IDNDR Programme Forum held in July 1999 to reduce the disaster risk. It is implemented to take preventive measures to reduce the risk of disaster and hazards. It contains vision, goals, and objectives to reduce the risk percentage of loss of life and properties due to disasters and hazards.


29) Which kind of wave/ waves caused by the gravitational interaction between the Sun, Moon and the Earth?

  1. Tsunami
  2. Tidal waves
  3. Both
  4. None of the above


Answer: B) Tidal waves

Explanation: Tidal waves are the result of gravitational pull by the moon on earth. As we all know, the moon revolves around the earth, and it comes near to earth, which applies a gravitational pull due to which waves rise in the sea and ocean. The rising water level in the ocean called tides is caused by the gravitational interaction between the Sun, Moon and the Earth. Tidal waves are the vertical rise of water that hit the seashore periodically. When there is a full moon, tides are very high due to the extreme rise of ocean water level called spring tide, and when the ocean water level is low, it is called a neap tide.


30) International Day of Natural Disaster Reduction is celebrated on……….

  1. June 15
  2. March 5
  3. October 13
  4. September 13


Answer: C) October 13

Explanation: International Day of Natural Disaster Reduction is celebrated every year on October 13. It was started in 1989, after a call by the United Nations General Assembly for a day to promote a global culture of risk-awareness and disaster reduction.


31) Who among these govern/ head the National Crisis Management Committee?

  1. Cabinet Secretary
  2. Ministry of Home Affairs
  3. Prime Minister
  4. Ministry of Environment


Answer: A) Cabinet Secretary

Explanation: The Cabinet Secretary heads National Crisis Management Committee. Cabinet Secretary is the highest executive officer, and all the secretaries of the concerned department are members of the committee.


32) For what purpose thermal Imagers are used?

  1. To read and record the moment in the earth’s crust.
  2. To record the intensity of the earthquake.
  3. To take pictures of heat emitted by the volcano.
  4. All of the above


Answer: C) to take pictures of heat emitted by the volcano.

Explanation: It is really difficult to take inside pictures of volcanoes, especially active volcanoes, so scientists use thermal imagers to take a picture inside volcanoes. Thermal imagers take pictures of heat emitted by the volcano, and magma’s redness in the picture describes the intensity of magma in the volcano. Images clearly describe which lava flows are hotter, newer, cool down, getting hotter day by day, cooler, or cooled down permanently.


33) Which instruments are used to measure minute changes in ground slope and shape of volcanoes?

  1. Strain meters
  2. Tiltmeter
  3. Both a and b
  4. None of these


Answer: C) Both A and B

Explanation: Tiltmeter has been used as an observatory of active volcanoes since 1912. A scientist first placed it in the United States for observing the Hawaiian Volcano. Tiltmeter is used to record the tilted crust/ surface of underground land due to magma accumulation beneath the ground. Tiltmeter is placed in shallow bare holes (1-6 meters or 5-20 feet deep ) for an accurate result.

Strain meters are used to measure the strain( change in shape) of the crust. These are highly sensitive instruments to detect the load on earth crust created by the pressure of winds due to weather cycle. Strain meters are buried in bare holes about a hundred feet below the ground surface. When moving, magma or earthquake make ground to change the shape then the bare hole of strainmeter also changes its shape. It squeezes, stretches and shearing the instrument within, which is recorded by the scientist. It also helps in detecting the minute change in a layer of the earth’s crust underground.


34) WMD stands for?

  1. Weapon of Mass Distraction
  2. Weapon of Mass Destruction
  3. Weapon of Minor Destruction
  4. None of these


Answer: B) Weapon of Mass Destruction

Explanation: WMD stands for Weapon of Mass destruction. WMD defines nuclear, biological, atomic, radiological, chemical, or any other weapon used to destroy natural and human-made structures like mountains, human beings, lakes, buildings, infrastructure etc. It’s a weapon used in wars for huge destruction of land and mass by various methods. Hiroshima and Nagasaki are some of the best examples where a weapon of mass destruction was used. An anatomic bomb was fired on them, destroying the cities, and still, they have a notch of that destruction.


35) In which year largest cyclone-hit Andhra Pradesh displaced 63,40,000 people?

  1. 1992
  2. 1989
  3. 1990
  4. 1991


Answer: C) 1990

Explanation: In 1990, the Andhra Pradesh Cyclone or Machilipatnam was the worst disastrous cyclone that hit the coastal region of South India. It was originated in the Bay of Bengal 600 km to the southeast of Chennai. It was the first worst cyclone that hit A.P., and before that, no cyclone was named so, it was named as 1990 Andhra Pradesh cyclone. At that time, the cities of Andhra Pradesh witnessed heavy and the highest rainfall ever.


36) Find another name for Amateur radio?

  1. Pocket radio
  2. Tsunami Radio
  3. Ham Radio
  4. Disaster Radio


Answer: C) Ham Radio

Explanation: Ham Radio is another name of Amateur Radio. Ham is the nickname for Amateur Radio operators, heard in 1909. Ham radio was used as an entertainment tool in starting to talk to people across town, but later it was used to communicate worldwide, even in space and without internet or cell phone. It can be used in social, educational, fun, and personal communication, depending on time. Ham radio station can be set up anywhere where it is required. (at home, club, workplace, open ground etc. )


37) What year Bhopal Gas Tragedy happens, and due to which gas?

  1. In 1986, Ethyl isocyanate
  2. In 1984, Methyl isocyanate
  3. In 1984, Potassium isothiocyanate
  4. In 1987, Sodium isothiocyanante


Answer: B) In 1984, Methyl isocyanate

Explanation: Bhopal Gas Tragedy was the first and worst industrial disaster in the world. On 3 rd December 1984, chemical MIC( methyl isocyanate) spilled out from pesticide factory named Union Carbide India’s Ltd’s ( UCIL) situated in Bhopal city which turned Bhopal city into a poisonous city over a night. Around 15,000 people died, and 600,000 workers effect due to methyl isocyanate. At that time, doctors were not aware of how to recover from this kind of disaster.


38) Novel Coronavirus was originated from which country?

  1. India
  2. China
  3. Japan
  4. Bangladesh


Answer: B) China

Explanation: Novel Corona Virus was originated from Wuhan city of China. The first case of coronavirus infection was confirmed in the United States. Initially, it was detected in Wuhan’s wholesale food market where Shopkeepers, stallholders, market employees, and regular visitors were infected. Later, on January 1 market was closed on the government ordered.


39) According to WHO, the number of countries and territories affected by

  1. 255
  2. 195
  3. 218
  4. 220


Answer: C) 218

Explanation: According to the WHO (World Health Organization), 218 countries and territories are affected by COVID-19 originated from Wuhan, China, in 2019. it is a natural disaster that arises due to viruses found in bats(animal).

People who ate an infected bat got infected with this virus, and it is named coronavirus. Till now, it is ruling the world.


40) According to WHO, which precaution should be taken from coronavirus?

  1. Social Distancing
  2. Covering of mouth and nose with a mask
  3. Sanitizing hands at a short interval of time
  4. All of the above


Answer: D) All of the above

Explanation: WHO(World Health Organization) has regulated some precautions from novel coronavirus like wash hands or sanitize hands at a short interval of time, use of mask over mouth and nose, use of gloves, keep social distancing from people and take protective, measures recommended to stop this infectious virus.


41) Which method is widely used to measure flood variability?

  1. FFI
  2. FFMI
  3. FI
  4. FMI


Answer: FFMI

Explanation: Full form of FFMI is Flash Flood Magnitude Index. It is an instrument used to measure flood variability. Flash flood refers to a short-term high-intensity rainstorm, which raises the water level in a few hours of rainfall. Most flash floods were noticed in hilly areas, mountains and coastal areas. Flash flood magnitude index collects data of rising in the amount of water level due to flood. It is a calculative method which helps in comparing the occurrence of flash flood during years.


42) Which kind of human being are mostly affected by the COVID-19?

  1. Children have a mild infection.
  2. Older people above 60 years with pre-existing medical conditions.
  3. People have low, very low immunity.
  4. All the above


Answer: D) All the above

Explanation: COVID-19 can occur in all age groups of people. According to AIMS, coronavirus highly affects people suffering from some medical conditions like diabetes, lung infection, cancer, blood pressure, heart disease, some infection and many more. It also affects the children having a mild infection as small children don’t have high immunity. They are highly sensitive and catch contagious diseases easily. Adults can recover but having some medical issues made it difficult to survive in coronavirus.


43) Coronavirus belongs to which family of viruses?

  1. Adinoviridae
  2. Coronaviridae
  3. Filoviridae
  4. None of the above


Answer: B) Coronaviride

Explanation: Coronaviruses belong to the coronaviridae and nidovirus virus family, which result in many diseases named bovine coronavirus, canine coronavirus, human coronavirus, turkey coronavirus, feline enteric coronavirus, porcine epidemic diarrhea virus etc.


44) How many numbers of different activities are defined under disaster management?

  1. 4
  2. 7
  3. 5
  4. 6


Answer: D) 6

Explanation:

Six different activities come and are defined under disaster management.

  1. Equity of assistance
  2. Loss management
  3. Risk management
  4. Control of events
  5. Resource management and impact reduction.
  6. Emergency training.

45) How many stages are there in the process of disaster management?

  1. 7
  2. 4
  3. 8
  4. 5


Answer: D) 5

Explanation: There are five stages in the process of disaster management includes planning (by applying which method disaster can be tackled), prevention (measures are taken to avoid disaster), preparedness (ready to tackle the disaster by various methods), response (if a disaster happens how it can be handled) and recovery (how the disaster is recovered as soon as possible). Natural disasters like cyclones, earthquakes, hurricanes, Tsunami, and various other natural disasters occur in various parts of the world, killing thousands of people and damage property. So to prevent this disaster, disaster management has been established with a process.


46) Which of the following is not an example of a rapid-onset disaster?

  1. Earthquake
  2. Drought
  3. Cyclone
  4. Tsunami


Answer: B) Drought.

Explanation: Rapid-onset disaster occurs rapidly and suddenly at a very fast rate. For example, earthquakes, cyclones, windstorms, landslides, avalanches, wildfires, volcanic eruptions and floods. Rapid onset disaster is a natural disaster that causes damage to life and property rapidly.

Slow-onset disasters are the opposite of rapid-onset disasters. They include failure of crop due to drought, spreading of pests or disease. Slow onset disasters are the result of carelessness and slowly spoiling of natural fertilized lands.


47) Coastal tidal gauges are placed ………km away from seashore to detect Tsunami near seashore?

  1. 100
  2. 75
  3. 50
  4. 25


Answer: C) 50 km

Explanation: Coastal tidal gauges are used to detect Tsunami nearer to the seashore. They are placed 50 km away from the seashore to measure the tides and calculate the size of the Tsunami. They provide information via submarine cables and give warning in time. Joseph Sexton invents coastal tides Gauges around 1851. U.S. Coast and Geodetic Survey developed a self-recording Tide Gauge.


48) Father of modern seismology is………….

  1. D Oldham and John Milne
  2. Charles Richter
  3. M Davis
  4. None of these


Answer: A) R.D Oldham and John Milne

Explanation: R.D Oldham and John Milne is called the father of modern seismology. The nickname of John Milne was ‘Earthquake Milne’ because he was the first who invented the horizontal pendulum seismograph. He established the world’s first earthquake library in Tokyo with the hard work of 20 years.

Richard Dixon Oldham was the third son of Thomas Oldham, Prof. of Geology at Trinity College. In his last days, he worked with John Milne on the Isle of White.


49) Which option refer to as Ring of Fire?

  1. Area encircling the pacific ocean named as Circum-Pacific Belt
  2. Area encircling by a belt of volcanoes of mid-Atlantic ocean
  3. Area encircling by the belt of volcanoes of the mid-continental region.
  4. None of these


Answer: A) Area encircling the pacific ocean named as Circum-Pacific Belt.

Explanation: Circum- Pacific Belt is called as Ring of Fire. It is a belt of most active volcanoes on earth around the Pacific Ocean. It has the world’s highest volcanoes concentration, more than 450, which produce 90% of the planet’s frequent earthquakes. These active volcanoes spread along approximately 40,000 km ( 24,900 miles). Some countries around the ring of fire are Chile, Mexico, United States, Antarctica, Russia, Japan, Philippines.


50) In the volcano eruption’s recorded history, which volcano is known for its most destructive volcano eruption?

  1. Barren island
  2. Mount St Helens
  3. Mount Kilimanjaro
  4. Krakatoa


Answer: D) Krakatoa

Explanation: Krakatoa volcano is situated on Rakata Island in the Sunda Strait between Java and Sumatra, Indonesia. It was the biggest and highest volcano eruption when black ash rose 17 miles (27 km) above Krakatoa. The volcano became active on May 20, 1883, and the final eruption took place on August 27, 1883. Later on, small eruptions happen up to February 1884.


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