MEDIUM
Earn 100

Our elders constructed tanks, ponds and open wells to conserve water. Nowadays reservoirs are constructed to conserve water. Which one is eco friendly among these? Why?

Important Questions on Every Drop Counts

EASY
We should close the tap while brushing our teeth.
MEDIUM
Rajat keeps the tap running while brushing his teeth. His elder brother asked him not to do so. This wastes water. What can you learn from the above statement? 
EASY

Fill in the blank with a suitable word:

Animals need water to _____ (survive/die)

EASY
We should close the tap while brushing our teeth.
EASY
Water on the surface of the earth is groundwater.
EASY
Water is called the universal solvent because no substance can be dissolved in it.
MEDIUM

Give reasons for the following.

Leaking taps and pipes should be repaired.

EASY

Choose the right word and answer the following.

Water that seeps into the ground is called _____. (groundwater/surface water)

EASY
Water is essential because it (i) helps in digestion (ii) helps in excretion (iii) maintains body temperature
EASY
What should we do when we see water flowing unnecessarily?
EASY
Name a common liquid without which life on the earth is impossible.
EASY
Which of these forms of water can mix easily with air?