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Chemical Reactions and Equations
Question
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What are biogeochemical cycles? Explain a few of them with the help of line diagrams.

Answer

Biogeochemical cycles is defined as the flow of chemical elements and compounds  between living organismsand the physical  environment. Different materials (such as carbon, water, nitrogen and minerals) are cycled in the environment.
Some of these are illustrated below:
Water cycle (Hydrological cycle), Carbon cycle ,Nitrogen cycle etc.

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Some More Questions From Chemical Reactions and Equations Chapter

The food we eat is digested by various enzymes in our body. Why the same enzyme does not breakdown everything we eat? What significance does this have for degradation of waste material?

Mention some substances that are biodegradable?

Why are some substances biodegradable and some non-biodegradable?

Give any two ways in which biodegradable substances would affect the environment.

Give any two ways in which non-biodegradable substances would affect the environment.

What are various components of the ecosystem?

An aquarium is known as an artificial ecosystem. Why?

Give examples of herbivores, carnivores, omnivores and parasites.

State two differences between a consumer and a producer.

What happens when an organism dies?