Hey!
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What is the identity of planet A? Mars
What is the identity of planet B? Earth
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Mars - is a planet that has a thin layer of carbon dioxide, its color is red, and dust particles create small clouds.
Earth - is a planet that has the most oxygen supply then the other planets. Plants create food using photosynthesis which creates more oxygen. Earth is the only planet that contains gaseous gases. Water covers almost 3/4 of the entire planet. The Earth has lots of clouds caused when water is evaporated into the air.
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Hope This Helped! Good Luck!