photosynthesis materials aka H20 CO2 ( water and carbon dioxide)
Answer: an animal that is hunted and killed by another for food.
Explanation:
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.