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methane, ammonia, and water
what are the heavier gases that make up most of the mass of Uranus and Neptune?
a planet farther from the sun moves___ and has a ___ orbit , so it takes longer to travel around the sun.
hottest in the center (core)
the disk of material that made the solar system was cold around the outside and
tectonics, erosion, impact cratering, volcanism
list the processes that shape the surfaces of moons in the solar system.
sun, planets, moons, asteroids and comets, stars
list four of the different types of objects in the solar system.
hotter, rotates opposite direction, earth has carbon dioxide
name one physical difference between earth and venus
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