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Class 12BiologyEnvironmental IssuesPollution
Medium

What is the major drawback of $DDT$ as an insecticide?

AIPMT 1994All AIPMT
AIPMT 1999All AIPMT
  • A
    It becomes ineffective after some time.
  • B
    It is less effective than others.
  • C
    It is not biodegradable in nature.
  • D
    It is very expensive.
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Class 12 Questions

Class 12

Biology Questions

Chapter

Environmental Issues

Subtopic

Pollution

Previous Year

AIPMT 1994 PaperAll AIPMT years →

Previous Year

AIPMT 1999 PaperAll AIPMT years →

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