Presence of large amount of nutrients in waters causes excessive growth of planktonic algae called

Read the following statements carefully and find the incorrect statements: A. More than 1 percent impurities make domestic sewage unfit for human use. B. Less BOD causes mortality of fish and other aquatic creatures. C. Presence of large amounts of nutrients in water also causes excessive growth of planktonic algae, called an algal bloom. D. Algai bloom causes deterioration of the water quality an decreases fish mortality. E. Some bloom-forming algae are extremely toxic to human beings and animals. F. Eichhornia crassipies is the world's most problematic aquatic weed.

Assertion: Presence of large amounts of nutrients in water body causes excessive growth of planktonic algae. Reason : It is due to biomagnifications

Presence of water amount in enamel is -

Excessive growth of planktonic algae due to presence of large amounts of nutrients in water causing a distinct colouration of water is known as

Explain how does the inflow of large amount of nutrients like phosphates and nitrates into the water body drastically affects the aquatic life there. Name the phenomenon responsible.

Liver damage caused by excessive drinking of alcohol is called

Due to presence of large amount of yolk. Zygote divides into two incomplete halv es. This type of cleavage does not occur in

Assertion : Respiration is the breaking of the C-C bonds of complex compounds through oxidation within the cells and release of large amount of energy. Reason : The compounds that are oxidised during respiration are called respiratory substrates.

Why does water covered with excessive algal growth become polluted ?

Select the correct answer : Decrease of amount of ozone in stratosphere is called depletion of ozone and it is caused by