Out of the following, which statement(s), suggest the judicious use of fuels?

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Fossil fuels should only be used when absolutely necessary.

Natural gas can be used as a substitute as the reserve of natural gas discovered by us has gone up by ten times within twenty years.

Energy sources such as solar, wind and biomass should be used as an alternative to fossil fuels.

All of the above.

answer is D.

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Detailed Solution

The correct statements are Fossil fuels should only be used when absolutely necessary,
Natural gas can be used as a substitute as the reserve of natural gas discovered by us has gone up by ten times within twenty years, and Energy sources such as solar, wind and biomass should be used as an alternative to fossil fuels.
Fossil fuels take a very long time to produce energy , so they must be used . It should only be used when necessary. Natural gas as an alternate fuel should be used as its reserves have gone up ten times in the past twenty years, whereas the reserves of fossil fuels are depleting. Energy sources such as solar, wind, and biomass can also be excellent alternatives to fossil fuels as they are renewable resources.

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