Gondwana coal has variable quantities of …………… .

1. Low moisture
2. Small sulphur
3. Small variable quantity of phosphorus
4. All of them

Assertion (A): Hydel power is the cheapest form of renewable energy.

Reason (R): Once the project is operational it does not produce waste or green house gases.

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.

The liquid petroleum is called …………… .

1. Crude oil
2. Liquid oil
3. Natural gas
4. Natural oil

Light distillates : gasoline :: middle distillates : ……………

1. diesel
2. Lubricating oils
3. naphtha
4. LPG