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Management of Natural Resources — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceManagement of Natural Resources3 Marks
Question
State in brief two ways in which non-biodegradable substances would affect the environment. List two methods of safe disposal of the non-biodegradable waste.
✓

Answer

Non-biodegradable wastes cannot be decomposed into simpler harmless substances by the action of micro-organisms. These substances persist in the environment and cause adverse effects on the environment.
  1. The use of pesticides, insecticides has increased agricultural output but the chemicals present in them enter water and food chains. This affects the fertility of the soil and causes water and soil pollution.
  2. Plastic bags have changed the modem lifestyle but cause severe problems. They cause blockages in the drainage systems and these plastic bags when eaten by stray animals cause harm to them.
Methods of safe disposal of the non-biodegradable waste:
  1. Molten plastic waste mixed with asphalt can be used for making roads.
  2. Solid wastes should be buried in the urban areas as land fills.

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