Question

review it!
select the statement(s) that are true about crude oil.
petroleum is an insoluble, waxy substance that is a mixture of carbon, nitrogen, and sulfur compounds.
oil is the top source of transportation energy.
crude oil is interchangeably referred to as petroleum.
some oil reserves can be found in deposits near or at the surface.
refining is the process of drilling and pumping crude oil from the ground.

Explanation:

1. Statement 1: Petroleum (crude oil) is a mixture of hydrocarbons (carbon and hydrogen) with small amounts of nitrogen, sulfur, oxygen compounds; it is not a waxy, insoluble substance overall (many components are liquid and soluble in organic solvents). This is false.
2. Statement 2: Oil (gasoline, diesel, jet fuel derived from crude oil) is the dominant global source of energy for transportation. This is true.
3. Statement 3: Crude oil and petroleum are interchangeable terms referring to the same naturally occurring fossil fuel mixture. This is true.
4. Statement 4: While most crude oil is found in underground reservoirs, some shallow deposits (like oil seeps or surface tar sands) exist. This is true.
5. Statement 5: Refining is the process of separating and processing crude oil into usable products; drilling/pumping is extraction, not refining. This is false.

Answer:

• Oil is the top source of transportation energy.
• Crude oil is interchangeably referred to as petroleum.
• Some oil reserves can be found in deposits near or at the surface.