Water pollution is an undesirable change in the physical-chemical and biological properties of Aquatic ecosystem water. According to the sources of water pollutants, the type of water pollutants is point pollutants and nonpoint pollutants. In point pollutants the effluents are discharged at specific sites and in nonpoint pollutants, pollutants enter the water bodies over a large area and it is difficult to control them. According to the type of water pollutant it can be differentiated as biological pollutants, chemical pollutants, and physical pollutants. So take this quiz and increase your knowledge about water pollution.
1. Power plants, oil refineries, and many other industries use water as coolant and release hot water in the water bodies. Is temperature is 8 to 10 degrees higher than the intake water, so it causes.......
A. Chemical pollution
B. Biological pollution
C. Thermal pollution
D. None of these
2. Dal lake in Kashmir is highly affected by........
A. Industrial waste water
B. Municipal waste water
C. Virus
D. Fungus
3. Which one of the following are nonpoint pollutants?
A. Agricultural runoff
B. Hot water discharge
C. Both of these
D. None of these
4. The high temperature of water......... The rate of dissolved oxygen in the water.
A. Faster
B. Slower
C. No effect
D. None of these
5. A number of non-biodegradable pollutants accumulated in fat-containing tissues in increasing concentration along the food chain and prove hazardous to the organism. It is called.......
A. Biological magnification
B. Bioconcentration
C. Bioamplification
D. All of these
6. Which one of the following is the indicator of water pollution?
A. Tubifex
B. Chironomous
C. Both of these
D. None of these
7. Minimata disease caused by the consumption of.......
A. Fish from mercury contaminated water
B. Fish from chlorine contaminated water
C. Fish from arsenic contaminated water
D. All of these
8. Excess of nitrates causes......
A. Itai-itai disease
B. Methaemoglobinemia
C. Skeletal fluorosis
D. Black foot
9. Which one of the following caused by the excess presence of fluorine?
A. Minimata
B. Malfunctioning of sex hormones
C. Cerebral hemorrhage
D. Skeletal fluorosis
10. Black foot disease caused due to the presence of excess.....
A. Mercury
B. Arsinic
C. Fluorine
D. Carbon dioxide
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