a) Petroleum is converted to petrol and diesel in __________________.
b) Resource ______________ refers to careful use of resources.
c) Resources which are present everywhere are called ____________________
resources.
d) _________________ resources are those which are likely to be used in the future.
e) _______________resources are the most valuable resources.
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Explanation:
Petroleum is a naturally occurring, yellowish- black liquid found in geological ... These oil sands resources are called unconventional oil to distinguish them from oil which can be
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