Q3 of 38 Page 106

An ecosystem includes

Interaction of living and non-living things makes up Ecosystem. So, it includes both living as well as non-living objects.

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1

Which one of the following is an artificial ecosystem?

 2

In a food chain, the third trophic level is always occupied by

 4

In the given food chain, suppose the amount of energy at fourth trophic level is 5 kJ, what will be the energy available at the producer level?
Grass → Grasshopper → Frog → Snake → Hawk

 5

Accumulation of non-biodegradable pesticides in the food chain in increasing amount at each higher trophic level is known as