Human-Environment Interaction

Land that is good for growing plants is called:

• arable land.

• desertified land.

• arid land.

• desalinated land.

A desert has lots of:

• arable land.

• arid land.

If you wanted to turn arid land into arable land, you should use:

• emissions.

• fossil fuels.

• irrigation.

• solar power.

Which is one EFFECT of desertification?

• Arable land becomes arid land

• Arid land becomes arable land

If you have lots of salt water near your farm, which process would help you the most?

• Desalination

• Irrigation

• Desertification

• Deforestation

Desertification is a problem because:

• it dries out land.

• it takes salt out of sea water.

• it causes forests to spread.

• it creates greenhouse gases.

What is one EFFECT of greenhouse gases going into the atmosphere?

• Factories start burning more fossil fuels

• The temperature of Earth goes down

• Heat from the sun gets trapped on Earth

• More water gets frozen in polar ice caps

Which of these is NOT a fossil fuel?

• Oil

• Wind

• Coal

• Natural gas

Resources are renewable if they:

• can be used over and over without running out.

• are made from the bodies of dead plants and animals.

• lead to the greenhouse effect on Earth.

• are burned in cars and factories.

Which of these is a fossil fuel?

• Coal

• Wind

• Water

• Solar