The process of splitting of radioactive substances is called …………… .

1. nuclear fission
2. nuclear fusion
3. nuclear reaction
4. nuclear bombing

Assertion (A): It is easy to harness the tidal energy.

Reason (R): Massive amounts of water in the oceans move in extremely predictable patterns.

1. Both A and R are true and R is the correct explanation of A.
2. Both A and R are true but R does not explain A.
3. A is true but R is false.
4. A is false but R is true.

Raghav's grandfather bequeathed a huge mansion in Rajasthan to Raghav. Which source of energy would you advise Raghav to use?

1. Wind
2. Solar
3. Geothermal
4. Biogas

Which of the following drawbacks of conventional sources of energy is forcing countries to shift to non-conventional sources of energy

1. greenhouse gases emission
2. fossil-fuel dependence
3. non-renewable resources
4. All of them.