a. Define the word hydrocarbon?
b. Crude oil is a _____________ of hydrocarbons
c. What is crude oil made from?
d. How long does it take to make?
e. Where does the energy originally come from?
f. How is crude oil different from coal??
g. Crude oil, coal and natural gas are collectively known as ________ fuels
dh. How is crude oil transported when it is extracted from the ground?
