Crude oil is mostly made of which of the following?
: greenhouse gas carbon dioxide hydrocarbons carbohydrates

 Hydrocarbon.

Explanation:

Crude oil is made up of carbon and hydrogen. Actually crude oil is a mixture of many compounds. It is formed by the dead and decaying remains of plants and animals.

Hence, called as fossil fuel. Burning of this fossil fuel into the environment releases carbon dioxide, sulfur dioxide and water into the environment.This is also used as a source of energy(fuel) in many processes.

d.

explanation:

answer; i believe that the correct answer is (light);