APES Study Guide Unit 6A - Nonrenewable Energy

Nonrenewable energy is defined as an energy source that has a __________ supply.

finite

__________ energy sources are those that supply energy that are infinite.

Renewable

The process that uses pressurized water and chemicals to fracture rock layers and release petroleum and natural gas is called __________.

Fracking

__________ is the highest grade of coal and is often used for domestic heating.

Anthracite

__________ is a mixture of partially decayed plant matter that serves as a source for coal.

Peat

The __________ occurs when the fuel in a nuclear reactor overheats and melts the core reactor.

Meltdown

The major energy source used in the world today is __________.

oil

The conditions necessary for coal to form include __________, increasing pressure, and heat.

time

The _________ process combines heat and power, using electricity and heat to power buildings or industrial processes.

Cogeneration

Natural gas is considered to have __________ impurities than coal or oil.

fewer

A disadvantage of using coal is that it releases sulfurs and __________ metals.

trace

One of the cons of extracting natural gas is that methane can be released, which is __________ more potent than carbon dioxide.

25%