Hydrosphere

Q. The process where water vapour gets cooled down into water droplets is called .

1. precipitation
2. condensation
3. evaporation

Q. What are the main components of the hydrosphere?

1. Oceans
2. Rivers
3. Rocks
4. Lakes

Q.

Why is water a wonder liquid? Justify.

Q.

What are the different roles of the hydrosphere?

Q.

Part of earth covered by water is

1. 50%

2. 71%

3. 87%

4. 92%

Q. Around 97% of the Earth's water is found in _____.

1. glaciers
2. oceans
3. lakes
4. rivers

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

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

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

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

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

Q. Why do humans not use the ocean water?

1. It is too hot
2. It is too salty
3. It is too cold
4. It is too dense

Q. The three main stages in the water cycle are evaporation, condensation, and precipitation.

1. False
2. True

Q. Choose the correct option(s) regarding seas and oceans.

1. Rivers usually flow towards seas and oceans.
2. Seas are bigger than oceans.
3. Seas are smaller than oceans.
4. Sea and ocean water is salty.

Q. Earth is also known as the ______.

1. yellow planet
2. red planet
3. blue planet
4. green planet