Home
Class 12
BIOLOGY
Assertion : Agriculture output increased...

Assertion : Agriculture output increased several times after introduction of DDT.
Reason : DDT was the first insecticide used on a wide scale.

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:
A
Promotional Banner

Topper's Solved these Questions

  • ENVIRONMENTAL ISSUES

    DINESH PUBLICATION|Exercise Check your grasp|18 Videos

  • ENVIRONMENTAL ISSUES

    DINESH PUBLICATION|Exercise Brain teasers-X|145 Videos

  • ECHINODERMATA

    DINESH PUBLICATION|Exercise REVISION QUESTIONS|65 Videos

  • EVIDENCES OF EVOLUTION

    DINESH PUBLICATION|Exercise CHECK YOUR GRASP|3 Videos

Similar Questions

Explore conceptually related problems

Assertion : Agricultural output increased several times after the introduction of DDT . Reason : DDT was the first insecticide used on a wide scale .

Assertion: Agricultural output increased several times after introducing of DDT Reason:DDT was the first insecticide used on a wide scale

Assertion : Using dung as fuel greatly reduces grain production. Reason : Dung used as manure increases crop yield.

Assertion : If amplitude of SHM is increased , time period of SHM will increase. Reason: If amplitude is increased, body have to travel more distance in one complete oscillation.

Now-a-days use of DDT as insecticide is banned because

Assertion : Horticulture is a branch of agriculture that deals with the production of vegetables, fruits, flowers and decorative flowers. Reason : Horticulture is similar to agriculture in many ways, but it is usually carried out on a smaller scale.