MCQ
Which of the following shows the correct order of the water cycle?
i) Condensation → Evaporation → Precipitation → Collection
ii) Evaporation → Condensation → Precipitation → Collection
iii) Precipitation → Evaporation → Condensation → Collection
iv) Collection → Precipitation → Evaporation → Condensation
ii) Evaporation → Condensation → Precipitation → Collection
Assertion: Breeze blowing from Land to Sea is called Sea breeze
Reason: Land breeze occurs in night time
A is false but R is true
What are the stages of water cycle?
1. Evapoartion 2. Condensation
3. Precipitation 4.Run off ( Collection )
Green Valley School installed a rainwater harvesting system. During summer, the Sun heats the water in rivers and ponds. The water changes into water vapour and rises up. In the sky, it cools down and forms clouds. After some time, it rains. The school collects rainwater and stores it in a tank to use for watering plants.
1)Why does water from rivers and ponds rise up during summer?
Water from rivers and ponds rise up during summer due to process of evaporation.
This is a weather condition of mixture of rain and snow or hail.
i) Sleet ii) Frost iii) Dew iv) Fog
Assertion: Sweat cannot evaporate and we feel extremely hot in coastal areas.
Reason: When humidity is high, air is filled with water vapour.
Both A and R are true and R is correct explanation of A
What do you mean by condensation?
The change of gas into liquid on cooling is called condensation.
What happens to water vapour when it cools down in the sky?
It condenses and forms clouds
The change of solid into liquid on heating is called _______.
1) Precoipitation
2) Melting
3) Evaporation
4) Freezing
2) Melting
Assertion: World water day is observed on March 22.
Reason: It celebrates and raise awareness about the importance of freshwater.
Both A and R are true and R is the correct explanation of A.
Define precipitation.
The process of water condensing and falling on the Earth is called precipitation.
How does rainwater harvesting help the school?
Rainwater harvesting helps by storing water for later use and avoiding wastage of water.
The amount of water vapour present in the air is called _______.
a) Transpiration
b) Evaporation
c) Humidity
d) Condensation
c) Humidity
Assertion: Fog and mist are similar.
Reason: Fog is lighter than mist so we can see better through it.
A is true and R is false
How are dew drops formed?
On cold nights, water vapour condenses into water droplets which are seen as dew drops on leaves and grass.
If there were no Sun, which step of the water cycle would stop first? Why?
Evaporation would stop because there will be no heat to convert water to water vapour.