Geography
Give a geographical reason for each of the following:
Petroleum is called 'liquid gold'.
Related Questions
How is Gondwana coalfield different from tertiary coalfield in terms of location and quality?
Give a geographical reason for each of the following:
CNG is an eco-friendly fuel.
Give a geographical reason for each of the following:
Natural gas is a fossil fuel.
Name the coalfield that is oldest and one that is largest in India.