MEDIUM
10th CBSE
IMPORTANT
Earn 100

What is the main difference between biodegradable and non-biodegradable wastes?

Important Questions on Our Environment

EASY
10th CBSE
IMPORTANT
Choose one category of chemicals from the brackets that are responsible for the ozone hole. (Chlorofluorocarbons/Nitrogen).
EASY
10th CBSE
IMPORTANT
What are the components of an ecosystem?
EASY
10th CBSE
IMPORTANT
How are heterotrophs different from autotrophs?
EASY
10th CBSE
IMPORTANT
What is the importance of decomposers in an ecosystem?
MEDIUM
10th CBSE
IMPORTANT
Why do you need to clean an aquarium periodically while ponds do not need to be cleaned?
EASY
10th CBSE
IMPORTANT
What do you understand by a trophic level?
MEDIUM
10th CBSE
IMPORTANT
What will happen if all the organisms at a trophic level die?
EASY
10th CBSE
IMPORTANT
In what direction does the energy flow in a food chain? Why is it unidirectional?