Hydrosphere

Q. Why is the density of population high in coastal regions?

1. Equable climate.
2. Availability of abundance of food.
3. Availability of various products from the sea.
4. Its susceptibility to tsunamis and hurricanes.

Q. In Greek language 'Lithos' means Stone; 'Hudor' means ______.

1. Plant
2. Vapour
3. Life
4. Water

Q. All water bodies consisting of oceans, seas, lakes and rivers taken together form the _______.

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

Q. What are the three chief motions of water in the ocean?

1. Waves
2. Tides
3. Ocean currents
4. Bubble formation

Q. What happens when the Sun's rays continuously fall on the surface of water in oceans and seas?

1. Water evaporates.
2. Water condenses.
3. Water precipitates.
4. Water sublimes.

Q. The process by which water on the Earth keeps getting recycled is known as ______ .

1. Water rejuvination
2. Water cycle
3. Water recycle
4. Water retention

Q. The _______ includes all the water bodies that exist on the earth.

1. atmosphere
2. hydrosphere
3. lithosphere
4. asthenosphere

Q. Choose the correct statement.

Assertion [A]: There is no permanent human settlement in Antarctica.
Reason [R]: Antarctica is permanently covered with thick ice sheets.

1. Both A and R are true and R is the correct explanation of A.
2. A is false but R is true.
3. Both A and R are true but R is not the correct explanation of A.
4. A is true but R is false.

Q. The Indian Ocean is the warmest ocean in the world.

1. False
2. True

Q. The process where water heats up and turns into gaseous water vapour is called .

1. evaporation
2. condensation
3. precipitation

Q.

Which domain of the Earth consists of water in all its forms?

1. Biosphere

2. Atmosphere

3. Hydrosphere

4. Lithosphere

Q. Approximately ____ percent of the Earth's surface is water.

1. 71
2. 97
3. 3
4. 29

Q.

What is the polar diameter of the Earth?

1. 44 km

2. 38 km

3. 48 km

4. 54 km

Q. Which of these statements is true regarding the difference between maximum and minimum temperatures of a place?

1. The difference is less in coastal regions.
2. The difference is less in regions away from the sea.
3. The difference is more in coastal regions.
4. The difference is nearly the same in coastal regions and regions away from the sea.

Q. Which of the following are sources of fresh water?

1. Oceans
2. Glaciers
3. Icesheets
4. Groundwater

Q. Which of these represents the water cycle correctly?
(a) water on land and sea → evaporation → water vapour → clouds → rain
(b) water on land and sea → condensation → clouds → rain → ground water
(c) water on land and sea → evaporation → rain → clouds

Q. Between Bhopal, Delhi, Mumbai and Shimla, which two places show a similar temperature pattern? Explain the similarity between these two places.