Consisting of the fossilized remains of seedless vascular plant life, ____ was the first fuel to be widely used by human

societies.



a. gasoline
b. petroleum
c. natural gas
d. crude oil
e. coal


ANSWER: e

Biology & Microbiology

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In the surface waters of oceans, the two most limiting nutrients for primary productivity are

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Homologous chromosomes migrate to opposite poles during

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