Geography
Assertion (A): Natural gas is an eco-friendly fuel.
Reason (R): It is lighter than air and tends to dissipate in case of leakage.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R does not explain A.
- A is true but R is false.
- A is false but R is true.
Answer
Both A and R are true but R does not explain A.
Explanation — The fact that natural gas is lighter than air does not explain why it is eco-friendly. The eco-friendliness of natural gas comes from its low carbon emissions, not its ability to disperse. Hence, Reason (R) does not explain Assertion (A).
Related Questions
…………… coal has …………… per cent of carbon content and is the most preferred variety of coal.
- Lignite, 40
- Peat, 50
- Anthracite, 90
- Bituminous, 80
Bituminous coal is also known as …………… .
- coking coal
- Peat
- Steam oven
- Gas stove
Anthracite is ideal for domestic use as it is …………….
- smokeless
- high calorific value
- high carbon content
- All of them.
Name the brown low grade coal.
- Peat
- Lignite
- Anthracite
- Bituminous