9th Class Science Natural resources Question Bank 9th CBSE Science Natural resources

  • question_answer
      What are the effects of soil pollution?

    Answer:

                      Effects of soil pollution: (i) Chemicals, pesticides, metals, industrial wastes, animal refuse and other pollutants are extremely toxic to living beings and plant products, and cause severe chronic diseases posing a serious threat to human health. (ii) Solid wastes result in offensive odour and cause clogging of groundwater filters. (iii) Polluted soil damages crops and agricultural production due to decreased soil fertility. (iv) When food containing radioactive substances is consumed by human beings, they cause a number of undesirable diseases of the digestive track, thyroid gland, etc. (v) Pesticides not only pose a potential hazard to man, animal, fish and livestock, but they severely affect the desired yield of crops, fruits and vegetables, which become unfit for eating.


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