Q2 of 50 Page 476

Flow of energy in an ecosystem is always:

Sun is the ultimate source of energy in an ecosystem. Energy always flows from sun to the producer through photosynthesis. From producers energy transfers to different consumers. It always flow from sun to producer and then to consumers.

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What are the problems caused by the non-biodegradable wastes that we generate?

 1

Organisms of a higher trophic level which feed on several types of organisms belonging to a lower trophic level constitute the:

 3

Disposable plastic plates should not be used because:

 4

Depletion of ozone is mainly due to: