Water's Importance for life

Question 1

Water’s Importance for human

Answer 1

Medium for all chemical reactions in body.
Sweating cools human
Used for economic activity : generates electricity, irrigates crops.

Question 2

Water’s Importance for Flora (plants)

Answer 2

Needs water for photosynthesis, respiration and transpiration.
Requires water to maintain their rigidity.
Use it to transport nutrients from soil.
Transpiration from leaf surfaces cools plants by evaporation.

Question 3

Water’s Importance for Fauna (animal)

Answer 3

Medium for chemical reaction.
Cools body by panting for fur covered mammals, reptiles and birds.

Question 4

Water’s Importance for All living things

Answer 4

Helps create benign thermal condition on Earth.
Clouds (made of tiny water droplets) and ice crystals reflect around 1/5 of incoming solar radiation and lower surface temp.
Water makes up 60-95% of all living organisms.