Clouds

Q. How was water formed in nature?

Q.

Question 7

Clouds are

(a) tiny drops of water floating in air
(b) mixture of dust and water vapour
(c) particles of water vapour
(d) rain drops in air

Q.

9. Define fog in one sentence.

Q.

Clouds are -

1. tiny drops of water floating in air

2. mixture of dust and water vapour

3. particles of water vapour

4. rain drops in air

Q. Which of the following statement is correct about the clouds?

1. Clouds don't have dust particles in them.
2. Clouds only contain water vapours in them.
3. Clouds can contain solid, liquid and gaseous particles in them.
4. Clouds do not have any water droplets in them.

Q. Cloud is formed by the condensation of water.

1. True
2. False

Q.

Question 2:

a). In which form is water present in the atmosphere?

Q. The prolonged deficiency of rainfall in an area causes.

1. flood
2. drought
3. global warming

Q. Fill in the blanks:
(i) The layer of air around the earth is known as ___.
(ii) The component of air used by green plants to make their food, is ___.

Q. Pick the term which is not related to clouds

1. Soil
2. Rain
3. Condensation
4. Water

Q. Cloud is formed by the condensation of water

1. True
2. False

Q. How are clouds formed?

Q. The process by which water droplets in the clouds fall on the ground is called .

1. evaporation
2. condensation
3. precipitation

Q.

In a region of no rainfall, it leads to___and if there is a heavy rainfall, then it may lead to___

1. Flood, Hurricane

2. Drought, Tsunami

3. Drought, Flood

4. Hurricane, Tsunami

Q. We cannot see through the clouds.

1. True
2. False

Q. We cannot see through the clouds.

1. True
2. False

Q.

9. Both the formation of mist and clouds involve the condensation of water vapor. In which aspect do they differ from each other?

1. The process of cloud formation takes place in summer, whereas the process of mist formation takes place in winter.

2. The mist formation takes place in lower layers while cloud formation takes place in the upper layers of the troposphere.

3. Clouds are suspended in the atmosphere while mist settles down on leaves, walls, etc. on earths surface.

4. The water droplets of a cloud have a much lower temperature than that of water droplets of mist.

Q.

Clouds are formed because of ______.

1. evaporation of water followed by sublimation

2. condensation of water followed by sublimation.

3. evaporation of water followed by condensation

4. condensation of water followed by evaporation

Q. Which of these constituents present in air leads to the formation of fog and mist?

1. Oxygen
2. Water vapour
3. Carbon dioxide
4. Nitrogen

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

1. condensation
2. evaporation
3. precipitation

Q. Which of the following is not true about drought ?

1. Shared sources of water such as rivers, reservoirs, and groundwater for wells are in jeopardy of running dry during drought.
2. Drought can occur due to lack of moisture in the air causing wildfires that can damage communities and food supplies.
3. The intensity of droughts is measured on a Richter scale.
4. Drought patterns can be predicted based on precipitation patterns and moisture of soil over long periods of time.