Multiple choice questions XVI — task. Science CBSE, Class 10.

PDF chapter test TRY NOW

1. Depletion of ozone is mainly due to

Chlorofluorocarbon compounds
Pesticides
Methane
Carbon monoxide

2. In an ecosystem, the 10% of energy available for transfer from one trophic level to the next is in the form of

chemical energy
mechanical energy
heat energy
light energy

Login or Fast registration

Previous exercise

Exit to the topic

Did you find an error?

Register for free to see more content

Register for free to see more content