MEDIUM
8th CBSE
IMPORTANT
Earn 100

Why does the increased level of nutrients in the water affect the survival of aquatic organisms?

Important Questions on Pollution of Air and Water

MEDIUM
8th CBSE
IMPORTANT
Start Up Science>Chapter 17 - Pollution of Air and Water>Answer Orally>Q 1
What is the source of carbon monoxide in air? How does it affect the health of human beings?
MEDIUM
8th CBSE
IMPORTANT
Start Up Science>Chapter 17 - Pollution of Air and Water>Answer Orally>Q 2
In what ways does global warming affect us?
MEDIUM
8th CBSE
IMPORTANT
Start Up Science>Chapter 17 - Pollution of Air and Water>Answer Orally>Q 3
What are CFCs? How do they affect the atmosphere?
MEDIUM
8th CBSE
IMPORTANT
Start Up Science>Chapter 17 - Pollution of Air and Water>Answer Orally>Q 4
Name two alternative sources of energy that are in active use.
EASY
8th CBSE
IMPORTANT
Start Up Science>Chapter 17 - Pollution of Air and Water>Answer Orally>Q 1
Mention some major sources of water pollution.
MEDIUM
8th CBSE
IMPORTANT
Start Up Science>Chapter 17 - Pollution of Air and Water>Answer Orally>Q 2
What are the harmful effects of eutrophication?
MEDIUM
8th CBSE
IMPORTANT
Start Up Science>Chapter 17 - Pollution of Air and Water>Answer Orally>Q 3
Mention the three steps used to purify water.
EASY
8th CBSE
IMPORTANT
Start Up Science>Chapter 17 - Pollution of Air and Water>Answer Orally>Q 4
Mention two methods used to purify water at home.