1. Deforestation -

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7th Grade Unit 9 Earth Resources Lesson 1
Human Impact on Earth Resources Vocabulary of
Instruction
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1. Deforestation

• Destruction and cutting down of forestsoften to
  clear land for mining, roads, and grazing of
  cattleresulting in increased atmospheric CO2
  levels.

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2. Greenhouse Effect

• Natural heating that occurs when certain gases in
  Earths atmosphere, such as methane, CO2, and
  water vapor, trap heat.

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3. Global Warming

• Increase in the average global temperature of
  Earth.

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4. Inexhaustible Resources

• Resources that cannot be entirely consumed or
  used up in nature.

Sun
Wind
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5. Nonrenewable Resources

• Natural resource, such as fossil fuels and
  minerals that cannot be replaced by natural
  processes as quickly as it is used.

Coal
Oil
Gold
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6. Renewable Resources

• Natural resources, such as water, sunlight, and
  crops that are constantly being recycled or
  replaced by nature.

Geothermal Power
Wood
Paper