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Subjects
Science CBSE
Class 8
Coal and petroleum
Different types of natural resources
4.
Natural resources and its classification
Exercise condition:
3
m.
State true or false for the following
:
1
.
It takes few months for the formation of fossil fuels.
False
True
2
.
Destructive distillation of coal takes places in presence of oxygen.
False
True
3
.
Coal tar is a highly dense liquid.
True
False
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