1. How does the ozone layer over the Arctic change with the seasons?
- It peaks in spring and decreases in fall.
- It peaks in fall and decreases in summer
- It peaks in summer and decreases in winter.
- It peaks in winter and decreases in spring

2. What are the qualities of a greenhouse gas? Select the two correct answers.
- Absorbs and re-emits infrared radiation
- Three or more atoms in a molecule
- Transparent to infrared radiation
- Composed of single atoms, not molecules
- Produced by human activity

3. In 3-5 sentences, explain the difference in good and bad atmospheric ozone and how each is distributed in Earths atmosphere.

4. In 3-5 sentences, analyze impacts of oceans on human populations as the result of climate change in the current century.

5. Scientists are monitoring the pH of oceans. Which of these are they most likely studying?
The level of carbon dioxide in the air
The population of polar bears
The health of coral colonies
The rise of sea level

6. What would happen if some of the worlds countries broke the Montreal protocol and industry began manufacturing and using chlorofluorocarbons again? In 3-5 sentences, describe the effect of this action on Earth’s atmosphere and surface.

Please answer these ASAP. I need help. (Raised points)

It peaks in winter and decreases in spring
Absorbs and re-emits infrared radiation and produced by human activity
Good atmospheric ozone- The good atmospheric ozone protects the life on Earth against harmful UV rays. This layer is found in the stratosphere going upwards

Bad atmospheric ozone- This layer is distributed at the lowest Earth surface, the troposphere. This bad ozone is full of pollutants such as industrial gases.

4. As a results of climate change, ocean patterns are disturbed, this results in cyclones. Cyclones affect humans through their strong wind, leading to damaging homes etc. Climate change also causes the ocean to get warmer, this disrupts the ocean life, which is a staple diet for human being

5. The health of coral colonies

6. The Montreal protocol is treaty signed by countries to cease the use and production of products that deplete the ozone. CFC's when they react with the UV rays the carbon-chlorine bonds of the CFC's break. The chlorine atoms react with the ozone, resulting in the breaking of the ozone layer. This will results in increased UV radiation levels, which can have human effects, such as increased skin cancers and eye cataracts.

Explanation: