Which of the following renewable energy sources can be harnessed all the times?
1. Solar energy
2. Wind energy
3. Geothermal energy
Choose the correct code.
1
Only 2 and 3
2
Only 2
3
Only 1
4
Only 3
Which of the following renewable energy sources can be harnessed all the times?
1. Solar energy
2. Wind energy
3. Geothermal energy
Choose the correct code.
Only 3