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Subjects
Science CBSE
Class 10
Our environment
Ecosystem and energy flow
12.
Food web, biological magnification, ozone layer depletion causes and effects
Exercise condition:
4
m.
Select the best answer from the given options
:
Question
Options
1
.
Ozone layer destruction is
caused due to
\(Cl\) atoms
Nitrogen monoxide
All of the above
\(CFCs\)
2
.
Pesticides like DDT accumulate
the food chain through
Biomagnification
All of the above
Biofortification
Eutrophication
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