Questão número 639220

“This process...” (line 6) refers to the

• A.

  decrease of the energy produced by fossil fuels.

• B.

  discovery of natural resources millions of year ago.

• C.

  artificial decomposition of plants, animals and natural gas.

• D.

  disintegration of plants and animals under extremely cold conditions.

• E.

  deterioration of the remains of living beings caused by heat and pressure.