20 Questions
Which gas is responsible for trapping heat close to Earth?
Carbon dioxide
What happens when the amount of carbon dioxide in the air rises?
Earth's temperature warms up
What do NASA research satellites like OCO-2 and OCO-3 study?
The carbon cycle in plants and animals
What do plants do with the carbon dioxide they take in?
They convert it into oxygen
What do animals do with the oxygen they breathe in?
They convert it into carbon dioxide
What happens if there were no greenhouse gases in Earth's atmosphere?
Earth's ocean would freeze
What are human activities that are changing the balance of carbon in the air?
Burning fossil fuels
What can big increases in carbon dioxide in the atmosphere negatively affect?
Earth's climate
What is the main function of greenhouse gases?
To trap heat from the Sun
What is true about the carbon cycle on Earth?
It has stayed balanced over long periods of time
Which of the following best describes the greenhouse effect on Earth?
It traps heat from the Sun and keeps Earth warm
What would Earth look like without the greenhouse effect?
A planet covered in ice
What happens when the amount of CO2 in the atmosphere increases?
The temperature of Earth increases
Why do CO2 levels in the atmosphere increase even more when the temperature rises?
Because of the role the ocean plays in the carbon cycle
What is NASA's Orbiting Carbon Observatory 2 (OCO-2) designed to do?
Investigate the carbon cycle
How does the greenhouse effect impact the temperature of Earth?
It causes the temperature to increase
What happens to CO2 levels in the atmosphere when the temperature rises?
They increase
What role do research satellites play in studying carbon dioxide?
They measure CO2 on Earth's surface
What would happen to Earth's temperature if there was no greenhouse effect?
It would decrease
How does the ocean contribute to the increase in CO2 levels in the atmosphere?
By releasing stored carbon dioxide into the atmosphere
Test your knowledge about carbon dioxide and its role as a greenhouse gas in Earth's climate system. Learn about NASA's research satellites and their studies on carbon movement.
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