Because fossil fuels form from the remains of plants and animals, all fossil fuels contain carbon, too. Most of the carbon in fossil fuels exists as hydrocarbons, which are hydrogen-carbon compounds. Fossil fuels may exist as liquids, gases, or solids.Liquid Fossil Fuels: Petroleum A liquid mixture of complex hydrocarbon compounds is called petroleum.oal is a fossil fuel that forms underground from partially decomposed plant material. Coal was once the major source of energy in the United States. When fossil fuels, including coal, are burned, most of the energy released is heat.
Natural law (Latin: ius naturale, lex naturalis) is a philosophy that certain rights are inherent by virtue of human nature endowed by nature, God, or a transcendent source, and can be understood universally through human reason.
Aquinas said: 1  inasmuch as every substance seeks the preservation of its own being... whatever is a means of preserving human life , and of warding off its obstacles, belongs to the natural law. 2  those things are said to belong to the natural law, which nature has taught to all animals [Pandect. Just.