Question

Case study :
For energy needs scientist all over the world , look for alternative sources such as solar energy , tidal energy ,geothermal energy etc. They find out economic development , rapidly growing population and urbanization are putting strain on the environment .—Based on this ‘case study’ answer the following :-
Answer the following question:-
At present, which one is the widely used energy source?


solar energy

petroleum by-products

wind energy

Coal​

Answer 1

Answer:

answer is in this

green grow green in general

Explanation: