Answer:
2. blood vessels under the skin expand
Explanation:
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Answer:
a scientific theory of the origin of species of plants and animals
To perform this test to check if gold is real, make a light, tiny scratch on the item using a small nail file. Choose a spot that is not noticeable if possible. Use a dropper to apply a small drop of nitric acid to the scratch. If there is no reaction, then the piece is probably made from real gold.
Answer:
marine mammal protection act
Answer:
Metamorphic rock.
Explanation:
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