Question

which of the following is a disadvantage of using coal for energy? it is energy dense which means you get a lot of energy from it per unit. it releases pollutants and greenhouse gases when it burns. it is cheap which is better for your wallet. it is easy to transport in solid, liquid, or gaseous form.

Explanation:

When coal burns, it emits pollutants like sulfur dioxide, nitrogen oxides, particulate matter, and greenhouse gases such as carbon dioxide. These emissions contribute to air pollution, acid rain, and climate change. The other options ("It is energy dense...", "It is cheap...", "It is easy to transport...") describe advantages of using coal.

Answer:

It releases pollutants and greenhouse gases when it burns.