ECONOMICS (CBSE/UGC NET)

Detailed explanation-1: -There are four major types of nonrenewable resources: oil, natural gas, coal, and nuclear energy. Oil, natural gas, and coal are collectively called fossil fuels. Fossil fuels were formed within the Earth from dead plants and animals over millions of years-hence the name “fossil” fuels.

Detailed explanation-2: -Nonrenewable resources are those natural resources that are depleted more quickly than they can regenerate. Fossil fuels like oil and natural gas were formed over millions of years. Once mined and used completely, nonrenewable resources are gone forever.

Detailed explanation-3: -From an energy perspective, primary fuels such as coal, oil, natural gas, and uranium are natural resources. Moreover, flows in nature like wind, and hydro are also natural resources. Unlike flows, primary fuels are in deposits within the Earth that must be discovered and extracted.

Detailed explanation-4: -Oil is an unsustainable resource because it is nonrenewable. Renewable resources are nondepletable and have fewer environmental impacts. The Earth naturally replenishes renewable resources, which reduces adverse exploitation effects. Environmentalists rely on the sun, wind and water to produce endless energy supplies.

Detailed explanation-5: -Oil, coal, and natural gas are fossil fuels. Natural gas is a fossil fuel. Like other fossil fuels such as coal and oil, natural gas forms from the plants, animals, and microorganisms that lived millions of years ago.