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Target Exam

CUET

Subject

Biology

Chapter

Environmental Issues

Question:
Mark the statements as true (T) or false (F).

i) The thickness of the ozone is measured in the terms of dB.
ii) CFCs produce active chlorine in presence of UV radiation.
iii) Water logging is the only problem in the wake of green revolution.

Options:

i- T
ii- T
iii- F

i- F
ii- T
iii- F

i- T
ii- F
iii- F

i- F
ii- T
iii- T

Correct Answer:

i- F
ii- T
iii- F

Explanation:
The thickness of the ozone is measured in the terms of Dobson units (DU).
CFCs produce active chlorine in presence of UV radiation. These destroy ozone, converting it into oxygen.
Water logging and soil salinity are the problems in the wake of green revolution.

CUET Questions