Home
Class 11
CHEMISTRY
Assertion : Manures and biofertilizers s...

Assertion : Manures and biofertilizers shuld be used in place of chemical fertilizers.
Reason : Chemical fertilizers cause pollution by releasing excess nutrients in water bodies.

A

If both assertion and reason are true and reason is the correct explanation of assertion.

B

If both assertion and reason are true but reason is not the c orrect explanation of assertion.

C

If assertion is true but reason is false.

D

If both assertion and reason are false.

Text Solution

Verified by Experts

The correct Answer is:
a

Manures and biofertilizers do not produce chemical pollutants by releasing excess nutrients in water , causing eutrophication.
Promotional Banner

Topper's Solved these Questions

  • ENVIRONMENTAL CHEMISTRY

    NCERT FINGERTIPS|Exercise NCERT Exemplar|12 Videos
  • CLASSIFICATION OF ELEMENTS AND PERIODICITY

    NCERT FINGERTIPS|Exercise Assertion And Reason|15 Videos
  • EQUILIBRIUM

    NCERT FINGERTIPS|Exercise Assertion And Reason|15 Videos

Similar Questions

Explore conceptually related problems

How do fertilizers cause water pollution?

What are biofertilizers? In what sence are they better than chemical fertilizers?

What are advantages of biofertilizers over chemical fertilizers? Give an example of biofertilizer.

What are advantages of biofertilizers over chemical fertilizers. Give an example of biofertilizer.

Excessive use of chemical fertilizers reduces soil fertility in the long run .

Organic farming involves the replacement of chemical fertilizers and pesticides by biofertilizers and blopesticides.

In a given statement followed by two assumptions numbered I and II. An assumption is something supposed or taken for granted. You have to consider the statement and the following assumptions and decide which of the assumptions is implicit in the statement, Give answer 1) if only assumption I is implicit 2) if only assumption II is implicit 3) if either I or II is implicit 4) if neither I nor II is implicit 5) if both I and II are implicit Statement : If farmers want to improve their yield, they must use organic fertilizers in place of chemical fertilizers. I. Chemical fertilizers have certain ill effects on health. II. Chemical fertilizers do not produce as much yield as the organic fertilizers.

For what purposes the chemical fertilizers are used in crop fields ?