Global Issues - !st BAC

The layer of gases surrounding the Earth is called the __________.

What do we call the process of cutting down large areas of forest?

• Deforestation

• Afforestation

• Reforestation

• Desertification

__________ gases are responsible for trapping heat in the Earth's atmosphere.

Which of these is a renewable energy source?

• Coal

• Oil

• Wind

• Natural gas

Long periods without rainfall are called __________.

What term describes the gradual increase in Earth's average temperature?

• Global cooling

• Global warming

• Climate change

• Ozone depletion

Large masses of ice found in polar regions are called __________.

What do we call the line below which people are considered to be in poverty?

• Wealth line

• Poverty line

• Income threshold

• Economic boundary

__________ nations are typically more industrialized and economically developed.

What term describes farm animals raised for food production?

• Wildlife

• Pets

• Livestock

• Game