Fossil fuels are the energy source that form over as a result of the and partial of plants and other organic matter.

Blank 1:
Blank 2:
Blank 3:

Explanation:

Fossil fuels are mixtures of substances that can be burne to obtain energy like coal, petroleum and natural gas.

They are formed by organic matter, mainly carbon and hydrogen, along with other elements.

The theory with the most consensus on the formation of fossil fuels is that they formed after organic matter, plants and animals, died and were buried under a huge mass of sediments.

The huge pressures, in the absence of oxygen, yield the decomposition of the organic matter to form the fossil fuels.

Due to the fossil fuels require million of years to be formed they are considered nonrenewable energy resources, as they cannot possible be formed in a reasonable time on human life scale.

a  solution  is always transparent, light passes through with no scattering from solute particles which are molecule in size. the  solution  is homogeneous and does not settle out. a colloid is intermediate between asolution  and a  suspension. while asuspension  will separate out a colloid will not.