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.

Which of the following is a green renewable automotive fuel?

1. CNG
2. CBG
3. PNG
4. Solar energy

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.

Assertion (A): Nuclear energy is the most reliable source of energy.

Reason (R): Nuclear fuels are less affected by fluctuating fuel prices than the more volatile industries like oil and natural gas.

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.