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प्रश्न
State whether the following statement is true or false. If false, write the correct statement.
Chemical pollutants include a metallic salt solution of mercury and lead.
पर्याय
True
False
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उत्तर
True
संबंधित प्रश्न
Do you know of any activity which may be polluting this water source?
A large number of fish are suddenly found floating dead on a lake. There is no evidence of toxic dumping but you find an abundance of phytoplankton. Suggest a reason for the fish kill.
Study the picture given below and answer the following questions :
State one measure to control this pollution.
List two major harmful effects of the following:
Rivers contaminated with sewage.
Water pollution can spread ________ diseases in man.
Excessive use of chemical fertilizers depletes the soil and causes water pollution.
Explain the different ways by which water gets polluted.
Oxygen is returned to the atmosphere mainly by
Microplastics can be found in almost every freshwater source.
Thermal power plants give out a lot of hot waste water.
