Q. 35.0( 1 Vote )

Fill in the blanks:

(i) Rubber particles and dust raised by running motor vehicles are examples of .................... pollutants.

(ii) Too frequent exposure to.................... in a medical diagnostic technique may damage chromosomes.

(iii) Thermal power plants give out a lot of .................... waste water.

(iv) Sewage is a liquid waste from………

Answer :

(i) Vehicular air


Explanation: Vehicles burn fuels. This results in the release of rubber particles and dust among other harmful gases.


(ii) X rays


Explanation: X rays are used for medical purposes to detect fractures. However, Frequent exposure to these X-rays may cause mutations in the cells of the human body.


(iii) hot


Explanation: Thermal power plants make use of huge amounts of energy. The water that is involved ends up getting really heated. It is then released as a waste product.


(iv) domestic activities


Explanation:


Sewage is used to categorize the faeces, urine and laundry wastes that are generated in a household.


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