What settled on the ocean floor? Select all that apply:

• Algae

• Microscopic Animals

• Microscopic Plants

What conditions did the dead bodies of living things have to be in to become Kerogen? Select all that apply:

• Low oxygen

• Burried by sediment

• Decomposed by bacteria

What conditions have to exist for Keragen to make oil and gas? Select all that apply:

• heat

• pressure

How long does this process take?

• 50 million years

• a million years

• a billion years

• a thousand years

Along with the fact that oil is less dense than the surrounding material, what else makes oil come to the surface? Select all that apply:

• movement of the crust

• pressure

• presence of bacteria

What are reservoirs?

• Large pools of oil and gas at the surface of soil

• Oil and gas stored in the mantle of Earth.

• Oil and gas that collects under impermeable layers.

Which of the following are renewable energy sources? Select all that apply:

• Unconventional Fuels

• Biofuels

• Solar

• Oil

• Gas