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Pressure, Winds, Storms, and Cyclones

Science · Class 8 · All

ScienceClass 8AllEasy
Q1/15
45s

Which of the following helps reduce the damage caused by cyclones?

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All 15 questions in this quiz

  1. Why does warm air rise upward?

    1. It becomes heavier than cold air.
    2. It becomes less dense than cold air.
    3. Gravity stops acting on it.
    4. It loses all its heat.

  2. Storms become dangerous mainly because they produce:

    1. Strong winds and heavy rainfall
    2. Bright sunshine
    3. Cold mountain air only
    4. Dust without wind

  3. Which of the following is a sign of an approaching cyclone?

    1. Sudden fall in atmospheric pressure
    2. Clear blue skies for many days
    3. Increase in soil fertility
    4. Decrease in ocean water level

  4. Which layer of air surrounding the Earth exerts atmospheric pressure?

    1. Hydrosphere
    2. Biosphere
    3. Atmosphere
    4. Lithosphere

  5. Which of the following helps reduce the damage caused by cyclones?

    1. Ignoring weather warnings
    2. Early warning systems and evacuation
    3. Staying near the seashore
    4. Travelling during the cyclone

  6. Which weather instrument measures wind speed?

    1. Barometer
    2. Thermometer
    3. Anemometer
    4. Compass

  7. Which ocean condition is most favourable for cyclone formation?

    1. Cold ocean water
    2. Warm ocean water
    3. Frozen sea
    4. Shallow ponds

  8. A cyclone is formed due to:

    1. High-pressure air remaining still
    2. Low-pressure area surrounded by high-pressure air
    3. Freezing of seawater
    4. Movement of mountains

  9. At night, the breeze blowing from land to sea is called:

    1. Sea breeze
    2. Land breeze
    3. Cyclone
    4. Tornado

  10. Which breeze blows from the sea towards the land during the daytime?

    1. Land breeze
    2. Sea breeze
    3. Mountain breeze
    4. Valley breeze

  11. Air moves from:

    1. Low-pressure area to high-pressure area
    2. High-pressure area to low-pressure area
    3. North to South only
    4. East to West only

  12. Wind is caused mainly due to:

    1. Difference in air pressure
    2. Movement of water
    3. Earth's magnetic field
    4. Moonlight

  13. Atmospheric pressure is caused by:

    1. Sunlight only
    2. Weight of the air above us
    3. Earth's rotation only
    4. Water vapour only

  14. Which instrument is used to measure atmospheric pressure?

    1. Thermometer
    2. Hygrometer
    3. Barometer
    4. Anemometer

  15. What is pressure?

    1. The amount of heat in an object
    2. Force acting per unit area
    3. Speed of moving air
    4. Weight of an object