Class 10 Science Chapter 15 Our Environment Solution

Class 10 Science Chapter 15 Our Environment Solution

Brief Review

In an environment, biotic components like living organisms interact continuously with the other living organism and non-living environment. This interaction constitutes an ecosystem. Examples of an ecosystem are a pond, an aquarium, a forest, etc.

tropic levels in a food chainTrophic level

In an ecosystem, organisms are dependent on other organisms for their food and energy. This dependency creates a hierarchy of levels which we call as trophic level (trophic means food).

our environment objective questionsFood chain

Organisms in an ecosystem depend on others for food. This dependency creates a chain which we call a food chain.

food web diagramFood Web:

Usually, an organism depends on many other organisms. So, to adequately represent the food chain a web-like structure forms. We call this web as a Foodweb.



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