Home
Class 12
BIOLOGY
Assertion : Presence of large amounts of...

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

A

If both are true with reason being correct explanation

B

Both true but reason is not correct explanation

C

assertion is true but reason is wrong

D

Both are wrong

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • ENVIRONMENTAL ISSUES

    DINESH PUBLICATION ENGLISH|Exercise Check your grasp|18 Videos
  • ENVIRONMENTAL ISSUES

    DINESH PUBLICATION ENGLISH|Exercise Brain teasers-X|145 Videos
  • ECHINODERMATA

    DINESH PUBLICATION ENGLISH|Exercise REVISION QUESTIONS|65 Videos
  • EVIDENCES OF EVOLUTION

    DINESH PUBLICATION ENGLISH|Exercise CHECK YOUR GRASP|19 Videos

Similar Questions

Explore conceptually related problems

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.

Excessive nutrients in a fresh water body cause fish mortality give two reasons .

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

Assertion : The process in which nutrient rich water bodies develop plant population is called eutrophication. , Reason : Eutrophication helps in enhancement of plants and animals population by providing them oxygen.

Assertion : Polar bodies have small amount of cytoplasm. Reason : It is formed by unequal mitotic division.

Assertion : Good conductors of electricity are also good conductors of heat due to large number of free electrons. Reason : It is easy to conduct heat from free electrons.

Which marine algae produce large amounts of hydrocolloids ( water holding substances ) ?

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

Assertion : Inspite of exposure to large number of infectious agents humans are resistive to diseases. Reason : Humans are able to defend against most of the foreign agents due to the ability to fight disease-causing organisms.