Water Cycle

Q.

38. Mention the significance of water vapour in atmosphere.

Q.

What kind of energy conversion sustain the water cycle in nature?

Q.

Water cycle does not involve which of the following?

1. Evaporation

2. Condensation

3. Formation of clouds

4. Rainwater harvesting

Q.

Who is the poet of the poem "Dust of Snow"?

1. Leslie Norris

2. Robert Frost

3. Carolyn Wells

4. Robin Klein

Q.

Leaves release water in the form of vapour by the process of ___ (evaporation/transpiration).

Q. Clouds are ___ collections of tiny water droplets and crystallized water molecules.

1. small
2. tiny
3. massive
4. negligible

Q. Write True or False for the following statement:

• Evaporation is rapid on a wet day.

1. True
2. False

Q.

When rainwater reaches the surface of Earth it gets absorbed and contributes to the water table. This process of seepage of water into the ground is called___.

Q.

Choose the correct sequence of the steps of a water cycle.

i. Water evaporates from the water reservoirs present on land.
ii. Water exists in the form of water vapour in the atmosphere.
iii. Condensation of water droplets converts them into clouds.
iv. Rainwater again flows into different forms of water reservoirs on land.
v. When the clouds become big and heavy, they fall down as rain.
vi. Water vapours, due to cooling, form droplets using dust particles as nuclei.

1. i, iii, ii, vi, v, iv
2. i, ii, vi, iii, v, iv
3. i, ii, iii, iv, v, vi
4. ii, iii, iv, v, vi, i

Q. During winter season, presence of dew drops on leaves is a common site in gardens. During the formation of these dew drops, water changes its state from ______ to ______.

1. liquid, gaseous
2. gaseous, liquid
3. gaseous, solid
4. liquid, solid

Q.

Water vapour that condenses and falls down as rain is formed due to ___ of water from water bodies.

Q.

Which of the following plays a direct role in the formation of rain droplets?

1. Filtration

2. Precipitation

3. Transpiration

4. Humidity

Q.

What are clouds?

1. Black fluffy bodies in the sky
2. A collection of tiny particles of liquid or solid water in the sky
3. A collection of white cottony filaments in the sky
4. A very old computing system

Q.

What are the processes involved in the formation of rain?

1. Weathering, Condensation

2. Evaporation, Condensation

3. Condensation, Sedimentation

4. Evaporation, Sedimentation

Q. Condensation nuclei is the cause for ___.

1. glaciers
2. acid rain
3. pollution
4. rain

Q.

Which of the natural cycles make sure the availabity of water for terrestrial animals and plants?

1. Nitrogen cycle

2. Carbon cycle

3. Sulphur cycle

4. Water cycle

Q.

State true or false.
During water cycle, water exists only in one form.

1. True

2. False