HARD
Earn 100

Explain the process of rooftop rainwater harvesting with the help of a suitable diagram.

Important Questions on Nature’s Treasures

EASY
World water Day is celebrated every year on _____.
EASY
Tanks are a very important source of water in _____ India. (Western / Southern)
EASY
Seeds need water for _____.
EASY
Raw sewage is a _____ hazard.
MEDIUM
The area from which water drains into a river or stream is its _____ area. (water divide/ catchment)
EASY
Cleaning of water is a process of removing _____. (pollutants / nutrients)
EASY
You can collect rainwater for later use by rainwater _____.
EASY

Choose the correct word from the bracket and fill in the blank.

Water purifiers use _____ (ultraviolet/ infrared) light to kill germs.  

EASY
About 50% of our agricultural needs are met by _____.
EASY
Contamination of water by harmful substances and _____ is called water pollution.
EASY
The water that is no longer fit for human consumption is called _____.
EASY
When surface water bodies get polluted, people turn to _____ to meet their needs. (groundwater/ potable water)
EASY
Choose the correct option from the following.
(one, eight, three)
We must drink _____ glasses of water every day.
EASY
Discharge of untreated sewage into water bodies is one of the main source of _____.(guess the word).
EASY
The process of collecting and storing rainwater is called _____.
 
EASY
Cleaning of water is a process of removing _____.
EASY

_____ water becomes breeding site for larvae of mosquitoes.

EASY

Fill in the blank using the word given below.

(Uniform, atmosphere, humus, kilograms/grams, hydroelectric)

Water is used to generate _____ power.

EASY
You can collect rainwater for later use by rainwater _____.
MEDIUM

Water is used as a coolant in the _____.