EASY
10th Mizoram Board
IMPORTANT
Earn 100

Why are some substances biodegradable and some non-biodegradable?

Important Questions on Our Environment

EASY
10th Mizoram Board
IMPORTANT
Give any two ways in which biodegradable substances would affect the environment.
MEDIUM
10th Mizoram Board
IMPORTANT
Give any two ways in which non-biodegradable substances would affect the environment.
MEDIUM
10th Mizoram Board
IMPORTANT
What is ozone and how does it affect any ecosystem?
MEDIUM
10th Mizoram Board
IMPORTANT
 How can you help in reducing the problem of waste disposal? Give any two methods.
EASY
10th Mizoram Board
IMPORTANT
Which of the following groups contain only biodegradable items?
EASY
10th Mizoram Board
IMPORTANT
Which of the following constitute a food-chain?
EASY
10th Mizoram Board
IMPORTANT
Which of the following are environment-friendly practices?
MEDIUM
10th Mizoram Board
IMPORTANT
What will happen if we kill all the organisms at one trophic level?