Question

Today, ______ provides over 80% of the world's energy for human consumption.

Answer 1

Decomposing plants and other organisms, buried beneath layers of sediment and rock, have taken millennia to become the carbon-rich deposits we now call fossil fuels. These non-renewable fuels, which include coal, oil, and natural gas, supply about 80 percent of the world's energy.

Answer 2

Fossil fuels provide over 80% of the world's energy for human consumption.