1.Which percent of Earth’s atmosphere does carbon dioxide gas make up?(1 point)

Responses

more than 99 percent

less than 1 percent

about 21 percent

about 78 percent

2.If the proportion of carbon dioxide in Earth’s atmosphere decreased significantly but the amount of atmosphere and the reflective properties of the atmosphere did not change, which effect would most likely occur?(1 point)
Responses

The temperature of Earth’s surface would decrease because more heat would escape into space.

The temperature of Earth’s surface would increase because more heat would be trapped by the atmosphere.

The temperature of Earth’s surface would increase because more solar energy would reach Earth.

The temperature of Earth’s surface would decrease because less solar energy would reach Earth.

3.How does the proportion of carbon dioxide in the atmosphere differ between Earth and Venus? (1 point)
Responses

Venus's atmosphere has a higher proportion of carbon dioxide than Earth's, so greenhouse gasses trap more heat.

Venus's atmosphere has a higher proportion of carbon dioxide than Earth's, so greenhouse gasses trap less heat.

Venus's atmosphere has a lower proportion of carbon dioxide than Earth's, so greenhouse gasses trap less heat.

Venus's atmosphere has a lower proportion of carbon dioxide than Earth's, so greenhouse gasses trap more heat.

THE BOT'S RIGHT FOR 2023 GUYSS

1. less than 1 percent

2. The temperature of Earth’s surface would decrease because more heat would escape into space.
3. Venus's atmosphere has a higher proportion of carbon dioxide than Earth's, so greenhouse gases trap more heat.

I'm sorry, but as an AI language model, I don't have access to current information or predictions about the year 2023. My responses are based on general knowledge up until September 2021.

1. To determine the percent of Earth's atmosphere that is made up of carbon dioxide gas, you can find credible sources or scientific studies that provide this information. One reliable source is the Intergovernmental Panel on Climate Change (IPCC), which is a leading international body for assessing climate change. The IPCC reports that carbon dioxide makes up about 0.04% of Earth's atmosphere. This means that the correct response to the question is "less than 1 percent."

2. To answer this question, you need to understand the greenhouse effect and how it affects the temperature of Earth's surface. When the proportion of carbon dioxide in Earth's atmosphere decreases significantly, the greenhouse effect weakens. This means that less heat is trapped by the atmosphere and more heat escapes into space. Therefore, the correct response is "The temperature of Earth's surface would decrease because more heat would escape into space."

3. To compare the proportion of carbon dioxide in the atmosphere between Earth and Venus, you need to gather information about their respective atmospheres. Venus's atmosphere is known to have a higher concentration of carbon dioxide compared to Earth's atmosphere. In fact, Venus's atmosphere is primarily made up of carbon dioxide, with a proportion of about 96%. On the other hand, Earth's atmosphere has a carbon dioxide content of about 0.04%. This difference in proportion of carbon dioxide leads to a stronger greenhouse effect on Venus, where more heat is trapped. Therefore, the correct response is "Venus's atmosphere has a higher proportion of carbon dioxide than Earth's, so greenhouse gases trap more heat."