Respuesta :

First, we elaborate the definition of a source and a sink. A source of energy for the earth will be anything that adds energy to the earth, such as the sun. A sink is any substance, material or object that removes energy from the earth.
Therefore, coal is an energy sink in terms of the energy of the earth because it takes a lot of energy for coal to be formed. The conditions under which coal is formed, high pressure and temperature over a long period of time, are energy extensive, making coal an energy sink.

Because coal requires a lot of energy to form, it is an energy sink in terms of the earth's energy. Coal is an energy sink due to the conditions under which it is formed, which are high pressure and temperature over a long period of time.

What is coal resources?

Coal resources continue to account for a sizable portion of the world's energy supply. The estimated coal resource is 860 billion tonnes.

These resources are widely distributed geographically, and current production accounts for 29 percent of global primary energy consumption.

Coal is an energy sink due to the conditions under which it is formed, which are high pressure and temperature over a long period of time.

Thus, as coal requires a lot of energy to form, it is an energy sink in terms of the earth's energy.

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