Answer:
Time Span of the renewability of fuels is a major factor when considering what type of fuel to use in a project. Fossil fuels, including <u>oil</u>, <u>coal</u>, and <u>natural gas</u>, require <u>thousands</u> to <u>millions</u> of years to renew. Alternative fuels, including <u>biomass</u>, <u>solar</u>, and <u>wind</u> power, have a huge advantage since they require <u>no time</u> to about one <u>hundred</u> years to renew. Making the <u>alternative</u> fuels the preferred choice for the conservation of natural resources.
Explanation:
I have been able to missing in the gaps with the correct word that is appropriate in the sentence.
Fossil fuels are known to be hydrocarbons which are majorly oil, coal and natural gas. They are formed from the remains of dead animals and plants. The process of fossil fuel formation started millions of years ago. It actually a longer time to renew. The alternative do not take longer time.