A. Decay of bodies of aquatic organisms
B. Rain
C. Growth of phytoplankton
D. Industrial effluents
Correct Answer: Industrial effluents ✔
Last Updated: May 23, 2024
Related MCQs
- This acts as bioindicator of air pollution:
- The atmospheric pollution is caused by:
- The percentage of run off water reaching the ocean and evaporation into atmosphere is respectively:
- Air pollution is maximum caused by:
- Sewage water can be purified for recycling with the action of:
- Photochemical smog is related to the pollution of:
- The cause of water pollution?
- Which of the following, when inhaled dissolves in the blood haemoglobin rapidly then O2?
- CO is harmful to human being because:
- Acid rain is mainly caused by increased concentration (in atmosphere) of:
- Ozone layer in stratosphere is effected by:
- Which one of the following insecticides is the most persistent in soil?
- Gases commonly referred to as ‘green house gases’ are:
- Which of the following is not an important atmospheric pollutant?
- Today, concentration of green house gases is high because of:
- The presence of O3 in atmosphere of earth:
- Identify the correctly matched pair:
- What are the chief pollutants of the atmosphere which are most likely to deplete the ozone layer?
- The maximum biological magnification of DDT through food web is seen in:
- Spraying of DDT on crop produces pollution of:
- DDT is a:
- Exposure of plants to high fluoride concentration results in necrosis or chlorosis characteristics in:
- Ozone depletion in stratosphere shall result in:
- Most outstanding danger at present for the survival of living beings on earth is:
- The major cause of pollution is:
- Which plant has become a troublesome weed in agricultural fields?
- Pollution can be controlled by:
- The ultraviolet radiations from the sun cause reaction that produce:
- Which major aerosol pollutant is present in jet aircraft emission?
- Most important causative pollutant of soil may be:
- A pollutant is any substance, chemical cycles
- BOD of polluted water is increased by
- Which one of the following is fungicide?
- Thermal pollution in water bodies is caused due to discharge of:
- When DDT was applied in an orchard as a pesticide, the fruit production decreased. This happened because:
- Air pollution is caused by:
- Which of the following pollutant is not the product of automobile exhaust?
- The effect of today’s radioactive fallout will probably be more harmful to children of future generations than to children now living because:
- Minamata diseased was caused due to water pollution by:
- Which of the following gases is regarded as an atmospheric pollutant?
- Most severe environmental hazard to mankind is due to:
- It is advised not to have brick kiln near fruit orchard:
- Green-house effect is due to the presence of:
- Tajmahal is threatened due to the presence of:
- When excess of sewage is dumped in the river, its BOD:
- The most harmful component of detergents causing water pollution is:
- The abbreviation MPN stand for:
- The ground water pollution is due to excess of:
- Indiscriminate use of fertilizers have lead to:
- Which of the following is not used for disinfection of drinking water?
- Which of the following is a biodegradable pollutant?