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Our Environment: CBSE Class 10 NCERT Solution

Oct 22, 2014 15:18 IST

    Find CBSE Class 10 Science NCERT Solutions for the chapter Our Environment. It has been framed keeping the Students perspective in mind. This will help the Students with easy and simple understanding of the concept and technique implied in solving this NCERT Solution as per the CBSE Marking Scheme.

    Q. Why are some substances biodegradable and some non-biodegradable?

    Sol: Substances which cannot be decomposed by the living organisms are known as non-biodegradable wastes. For example- glass, plastic, etc.

    Substances which can be easily broken down by enzymes are biodegradable wastes. For Example: Paper, Vegetable Wastes, etc.

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

    Sol: Biodegradable substances affect the environment in the following ways:

    Biodegradable substances mainly contain carbon. These substances after decomposition release that carbon back into the atmosphere.

    Substances like tree leaves, plant parts, etc. can be used in composting which forms humus. This enhances the soil fertility.

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