Tag: monsoon phenomena and its mechanism

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Multiple choice social studies precautions for natural disasters cyclonic winds monsoon phenomena and its mechanism tsunami, floods, cyclones, droughts and landslides

Hurricane is a tropical cyclone that occurs in the ___________.

  1. Atlantic Ocean

  2. North-eastern Pacific Ocean

  3. Indian Ocean

  4. Both A & B
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Hurricanes are tropical cyclones that form over the North Atlantic Ocean and the Northeast Pacific Ocean. Those in the Northwest Pacific are called Typhoons, and those in the Indian Ocean are simply called Cyclones.

Multiple choice social studies precautions for natural disasters cyclonic winds monsoon phenomena and its mechanism tsunami, floods, cyclones, droughts and landslides

In Indian Ocean region, naming the cyclone is decided by __________.

  1. India

  2. Sri Lanka

  3. Bangladesh

  4. All of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The naming of cyclones in the North Indian Ocean is a collaborative effort by the member countries of the WMO/ESCAP Panel on Tropical Cyclones, which includes India, Sri Lanka, Bangladesh, and others.

Multiple choice social studies precautions for natural disasters cyclonic winds monsoon phenomena and its mechanism tsunami, floods, cyclones, droughts and landslides

What is a water spout?

  1. A rotating body of water formed by whirlwind

  2. Water transported through pipeline

  3. Water source from underground

  4. Water collected from rain
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Water Spout is a phenomenon that results in the formation of vertical water funnel at sea. A rotating column of water and spray formed by a whirlwind occurring over the sea or other body of water.

Multiple choice social studies precautions for natural disasters cyclonic winds monsoon phenomena and its mechanism tsunami, floods, cyclones, droughts and landslides

The type of wave affecting Bay of Bengal is ____________.

  1. Hurricane

  2. Typhoon

  3. Cyclone

  4. Tornado
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Since sea surface temperatures and humidity both directly correlate with chances of cyclone formation, the Bay of Bengal is a more likely target because it gets higher rainfall, and because the sluggish winds around it keep temperatures relatively high: about 28 degrees around the year. Warm air currents enhance this surface temperature and aid the formation of cyclones.

In addition, the Bay receives higher rainfall and constant inflow of freshwater from the Ganga and Brahmaputra rivers. This means that the Bay’s surface water keeps getting refreshed, making it impossible for the warm water to mix with the cooler water below, making it ideal for depression. 

Multiple choice social studies precautions for natural disasters cyclonic winds monsoon phenomena and its mechanism tsunami, floods, cyclones, droughts and landslides

Which one of the following regions receives winter rainfall caused by western disturbances?

  1. Punjab

  2. Tamil Nadu

  3. Kerala

  4. Karnataka Coast
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Western disturbances are extratropical storms originating in the Mediterranean region that bring winter rainfall to the northwestern parts of India, particularly Punjab, Haryana, and Rajasthan.

Multiple choice social studies precautions for natural disasters cyclonic winds monsoon phenomena and its mechanism tsunami, floods, cyclones, droughts and landslides

Two important type of cyclonic activity is  _______.

  1. Cyclones

  2. Anticyclones

  3. Both a and b

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Cyclone and anticyclone are two important types of cyclonic activity. The atmospheric disturbance which involves a closed circulation about a low-pressure center, anticlockwise in the northern hemisphere and clockwise in the southern hemisphere, are called cyclones. On the other hand, anticyclone plays a much less important role in the weather-drama at the surface of the earth in comparison with the cyclone. It denotes on atmospheric system that is just opposite of the cyclonic system.

Multiple choice social studies precautions for natural disasters cyclonic winds monsoon phenomena and its mechanism tsunami, floods, cyclones, droughts and landslides

Cyclones rotates  ________ in Northern Hemisphere.

  1. anticlockwise

  2. clockwise

  3. Both a and b

  4. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

When the wind is spirally moving in towards a low-pressure center then it is called a cyclone. A cyclone has a low pressure at its center and high pressure on the surrounding sides. The wind movement is anti-clockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere.

Multiple choice social studies precautions for natural disasters cyclonic winds monsoon phenomena and its mechanism tsunami, floods, cyclones, droughts and landslides

Cyclones blow _______ in the southern hemisphere.

  1. Clockwise

  2. Anticlockwise

  3. Both a and b

  4. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

When the wind blows from the high-pressure center towards the low-pressure center this atmospheric disturbance is known as a cyclone. Cyclone blows anticlockwise in the southern hemisphere. It blows anticlockwise because of the Coriolis force produced by the rotation of the earth.

Multiple choice social studies precautions for natural disasters cyclonic winds monsoon phenomena and its mechanism tsunami, floods, cyclones, droughts and landslides

The eye or the center of a cyclone has a low _______.

  1. Atmospheric Pressure

  2. Temprature

  3. Both a and b

  4. Humidity
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

An area of closed, circular fluid motion rotating in the same direction as the Earth is known as a cyclone. It has a lower pressure inside and higher pressure outside. The center of the cyclone is known as the eye. It has a diameter of 20-50 km. It is the point about which the rest of the storm rotates. It has the lowest atmospheric pressure.