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Notes for the chapter :OUR ENVIRONMENT

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Notes for the chapter :OUR ENVIRONMENT
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Making Craft Sadaf 5 years, 4 months ago

Bhai ncert hi kaafi h

Gaurav Seth 5 years, 4 months ago

CBSE Class 10 Science Revision Notes Chapter 15 Our Environment

  • Environment means everything which surrounds us. It may include living (biotic) and non-living (abiotic) components.
  • Biotic : Plants and animals. Abiotic : Air, water etc.
  • Environment affect the life and development of an organism in its natural habitat & vice a versa.
  • Substances that can be decomposed by the action of micro-organism like bacteria are called bio-degredable. E.g. organic wastes.
  • Substances which cannot be decomposed by the action of microorganisms are called non-biodegradable.
  • Example of biodegradable wastes : cattle dung, cotton, jute, paper, fruit and vegetable peels, leaves etc.
  • Examples of non-biodegradable wastes : plastics, polythene bags, synthetic fibres, metals, radioactive wastes.

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