HW#1 U1.Ch4.L1

Front

What is coal?

Back

A fossil fuel formed from the remains of ancient plants, primarily found in swamps.

Front

What do fossil fuels need to form?

Back

High pressure and high heat.

Front

What are fossil fuels?

Back

Nonrenewable energy resources formed from the remains of organisms that lived long ago.

Front

Which fossil fuel is formed only from dead plants?

Back

Coal.

Front

What characteristic do all renewable resources share?

Back

They are replaced in a short period of time.

Front

What is petroleum?

Back

A fossil fuel that is a complex mixture of hydrocarbons, formed from the remains of ancient marine organisms.

Front

What is natural gas?

Back

A fossil fuel that consists mainly of methane, formed from the remains of marine organisms.

Front

What is the main difference between renewable and nonrenewable resources?

Back

Renewable resources can be replenished in a short period of time, while nonrenewable resources cannot.

Front

How are fossil fuels formed?

Back

Through the decomposition of organic matter under high pressure and high heat over millions of years.

Front

What is the primary use of fossil fuels?

Back

To generate energy for electricity, heating, and transportation.