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The correct answer is B. Cholestrol and Vitamin D.
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Answer: C
Explanation: ash prevents sunlight from reaching the earths surface therefore lowering the temperature.
Answer:
the upper layer of the Earth's mantle
Explanation:
Not the ocean, impossible to be in top of the core, not in the air
1. For which of the following activities might you want to hire a chemist?A. testing a sample of water from a well
2. Which of the following procedures involves a physical change in one of the substances?
D. grinding chalk into a fine powder
3. You have three molecules of glucose (3C6H12O6). How many oxygen atoms do you have?
C. 6