Biodegradable and Non-Biodegradable Materials


 
 
Concept Explanation
 

Biodegradable and Non-Biodegradable Materials

Types of wastes : All wastes can be classified into two types:.

  • Biodegradable Waste : Waste that can be decomposed by the action of microorganisms (bacteria and fungi) into simpler and harmless substances so that it cannot harm the environment is called biodegradable waste. All the wastes derived from living matter are biodegradable. Peels and cuttings of fruits and vegetables, leftover food, leaves, animal dung, bones, plant residue and agricultural wastes are some examples of biodegradable waste.
  • Non-biodegradable Waste : Waste that cannot be decomposed by the action of microorganisms into harmless substances is called non-biodegradable waste. Disposal of this type of waste is a serious problem because this type of waste does not rot or decay. The garbage that consists of plastic, glass and metal objects is non-biodegradable. If not handled properly, non biodegradable waste causes pollution.
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    Sample Questions
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    Question : 1

    Which of the following is a biodegradable waste?

    Right Option : C
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    Question : 2

    A mixture of orange peels, dried leaves, bones and sawdust contains __________________

    Right Option : A
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    Question : 3

    Read the passage(s) given below and answer the questions that follow:

    If you collect the garbage from your home and put it in separate pits covered with soil for a few days. You will find that something in the garbage rots. They form manure which is used for plants. Which of the following observations was the correct reporting about all the pits after 4 days when the soil was removed?

    Right Option : D
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