Iron, oxygen and water react with the iron creating a substance known to us as rust.
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Answer: B, C
Explanation: Scientists use radiometric dating of meteorites and analyze the impact craters on planetary body surfaces to learn about the age of the solar system and its planetary bodies.
Answer:
D
Explanation:
The Moon stays in orbit around the Earth because the Earth's gravity keeps the Moon orbiting us. The gravity makes the Moon accelerate all the time, even it's speed remains constant.
1.) Enzymes are a type of protein that speeds up the rate of chemical reactions
2.) Catalase is an enzyme in the liver that hydrogen peroxide (H2O2)
3.) By lowering the activation energy needed
4.) Catalysts
