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 ........................... .
Chronic chloroform exposure may cause damage to the liver and kidney, due to the formation of:
Too much exposure to X-ray radiation may cause which of the following?