INDIAN GEOGRAPHY

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: -Fossil energy sources, including oil, coal and natural gas, are non-renewable resources that formed when prehistoric plants and animals died and were gradually buried by layers of rock.

Detailed explanation-3: -Coal, natural gas and crude oil are called as fossil fuels. They are regarded as non-renewable source because it takes millions of years to form and once these resources are used, they cannot be regained.

Detailed explanation-4: -Fossil fuels such as oil, natural gas and coal are examples of non-renewable resources and they cannot be replaced as quickly as they are being used. The reason they are called fossil fuels is because they take billions of years to form naturally, from the remains of ancient plants and animals.

Detailed explanation-5: -Fossil fuels are available in limited amount and can be exhausted by human activities. Moreover, they can’t be renewed fast enough. Therefore, they are considered as non-renewable resources.