TEST ANSWERS

• The current estimated ae of the universe is 13.8 billion years.
• Creationism is based on the Bible.
• Creationism suggests that the universe was created by God.
• Which layer of the Earth is primarily composed of iron and nickel?

  Inner Core
• Nitrogen is not a greenhouse gas.
• What process involves the conversion of atmospheric nitrogen into forms usable by plants?

  Nitrogen fixation
• The Water Cycle involves the continuous movement of water between...?

  Oceans, atmosphere, and land
• What is the term for the process by which rocks are broken down into smaller particles by physical, chemical, or biological means?

  Weathering
• What is the primary gas that makes up the Earth's atmosphere?

  Nitrogen
• The ozone layer is found in which layer of the Earth's atmosphere?


  Stratosphere