Q. The constituents which do not form eco-system are

A
Biotic constituents
B
Plastic bags
C
Abiotic constituents
D
All of these
Solution:

Abiotic Components. The abiotic components of an ecosystem are all of the nonliving elements. …
Producers at the Base. Producers are the living organisms in the ecosystem that take in energy from sunlight and use it to transform carbon dioxide and oxygen into sugars. …
Consumers in the Chain. …
Decomposers and Nutrient Cycling

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