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What are the three layers of the earth?
Which of the three layers is the thinnest?
What are the three main gases in the atmosphere?
What are the three main types of rocks?
Which of the following is a sedimentary rock?
How are igneous rocks formed?
Matchup the following
What is an example of a metamorphic rock?
What is one way that carbon dioxide is released into the atmosphere?
What is one way in which carbon dioxide is taken in from the atmosphere?
What is the impact of the greenhouse effect on the Earth?