การเปลี่ยนแปลงสภาพภูมิอากาศโลก

Typically, the closer you are to the equator the cooler the environment will be.

• true
• false

Which of the following is NOT a greenhouse gas?

• methane
• carbon dioxide
• oxygen
• water vapor

Because plants perform photosynthesis, they play an important role in regulating the amount of CO₂ in the earth's atmosphere.

• true
• false

Methane's chemical symbol is

• CH₄
• CH₂
• CO
• C₄H

The earth is about ________ years old.

• 5 years old
• 5,000 years old
• 50 trillion years old
• 5 billion years old

When burned, fossil fuel are considered one of the biggest air pollutants.

• true
• false

Climate change and ozone depletion are the same concept.

• true
• false

The U.S. emits about __________ metric tons of CO₂ each year.

• 6 million
• 6.4 billion
• 60,000
• 64 million

Factors that can influence climate change are:

• greenhouse gases only
• greenhouse gases, ozone depletion, and latitude
• greenhouse gases, latitude, and sunspot cycles
• sunspot cycles, ozone depletion, and latitude

Greenhouse gases can stay in the atmosphere for long periods of time.  Answer the following:
Methane : 12 years :: CO₂ : __________

• 150 years
• 10 years
• 300 years
• 100 years