Tag: water pollution

Questions Related to water pollution

Aquatic life is damaged by

  1. Sound pollution

  2. Air Pollution

  3. Thermal pollution

  4. All of these


Correct Option: C

Rise in temperature due to heat from power plant and industries is known as

  1. Heat Pollution

  2. Thermal Pollution

  3. Waste pollution

  4. Solid Pollution


Correct Option: B

In an oil trap formed by an anticline, _____________ accumulates on top, ____________ in the middle, and ____________ at the bottom

  1. natural gas, oil, groundwater

  2. ground water, oil, natural gas

  3. oil, groundwater, natural gas

  4. oil, natural gas, ground water


Correct Option: A

Nitrogen in sewage indicates presence of

  1. Chemicals

  2. Inorganic Matter

  3. Organic matter

  4. Microorganism


Correct Option: C

'COD' test is carried out to determine pollutional strength of

  1. Sewage

  2. water

  3. Fresh water

  4. Marine Water


Correct Option: A

Ultimate environmental hazard to mankind is due to

  1. Water pollution

  2. Air pollution

  3. Noise pollution

  4. Nuclear pollution


Correct Option: A

Chief source of water and soil pollution is

  1. Thermal power plant

  2. Agroindustry

  3. Mining

  4. All of the above


Correct Option: D

Harnessing of nuclear energy often causes __________ pollution

  1. Air

  2. Water

  3. Thermal

  4. Noise


Correct Option: C

Stiffback and fixed joint disease in human beings is due to

  1. The use of fluoride contaminated water

  2. Bacterial infection

  3. Viral infection

  4. Mycoplasmal and fungal infection


Correct Option: A
Explanation:
 Prolonged exposure to fluoride leads to fluorosis. A disease condition affects teeth and bones where bones become stiff and weak.
So, the correct answer is 'The use of fluoride contaminated water'

Which of the following is main factor in water pollution? 

  1. Pesticides

  2. Industrial waste

  3. Detergent

  4. NH$ _3$


Correct Option: C
Explanation:
Water is an important resource for the people and the environment. It is the basis of life. Pollution of water affects drinking water, river and oceans all over the world. Water pollutants affect all living species and the complete functioning of the ecosystem that lives in the water. The major water pollutants are sewage, metals, lead, cadmium, arsenic, agrochemicals like DDT, microorganisms, plastics, detergents, oil and gasoline, inorganic chemicals, radioactive waste, sediments, plant nutrients, animal manure and plant residues, thermal pollution etc. Detergent is the waste from household, industries and firms that trigger organic pollution.
So, the correct answer is option C.