Fuels & Crude Oil

Why are the remains of ancient organisms buried so deeply within the earth? Choose the best answer.

• They were swallowed up by major earthquakes

• Most ancient organisms lived underground

• They were buried by the meteor strike that killed the dinosaurs

• They were buried by natural processes

Why is burning fossil fuels bad for the environment?

• It destroys the ozone layer

• It adds harmful mercury to waterways

• The clouds it creates bring excess rain and flooding

• The gases emitted lead to global climate change

The gases produced by burning fossil fuels usually contain which element?

• Carbon

• Oxygen

• Hydrogen

• Nitrogen

Why is burning fossil fuels harmful? 

• then we won't have any fossil fuels if we burn them all
• They can get extremely hot
• Increases the amount of greenhouse gases in the air
• this would destroy fossils

More and more people are using wind power to produce energy to heat and cool their homes. Wind power is a

• Renewable resource that forms due to the water heating of the Earth by the sun

• Renewable resource that forms due to the uneven heating of the Earth by the sun

• Nonrenewable resource that forms due to the uneven heating of the Earth by the sun

• Renewable resource that do not form due to the uneven heating of the Earth by the sun

Which of the following energy sources is considered nonrenewable?

• Fossil Fuel Energy

• Solar energy

• Tidal energy

• Wind enrgy

What is fractional distillation?

• a process used to separate crude oil

• a process used to burn up fuels

• a way to make different products

• how oil is extracted from the ground

Which of these substances is not a hydrocarbon?

• methane

• ethane

• propane

• butane

• ammonia

Fractional distillation separates crude oil based on the different __________ of the molecules in the mixture

• melting point

• boiling point

• freezing point

• chemical reactivity

A fraction of crude oil is made up of:

• Hydrocarbons of similar chain lengths

• Numbers

• Large hydrocarbons

• Alkenes only