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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
.
The conditions for degradation of plants, animals takes place in the presence of air.
False
True
2
.
Carbonisation is the slow process for the conversion of non-metals.
False
True
3
.
Coal tar is a highly dense liquid.
True
False
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