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Subjects
Science CBSE
Class 10
Sources of energy
Textbook questions
27.
NCERT Exemplar V
Exercise condition:
4
m.
Choose the appropriate answer
:
1
.
Which part of the solar cooker is responsible for the greenhouse effect?
Coating with black colour inside the box
Mirror
Glass sheet
Outer cover of the solar cooker
2
.
The main constituent of biogas is
hydrogen sulphide
hydrogen
methane
carbon dioxide
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