D. A tarnished surface of copper vessel can be cleaned up with lemon. Explain why this sour substance is effective in cleaning the metal vessels.

The minerals found in bones are deposited by living cells called

Which set of characteristics best describes igneous rock? a) largest type of rock, made of organic matter, hardest type of rock b) least abundant type of rock, made of other rocks, made mostly of minerals c) found on all continents, contains wavy bands of stripes, contains fossils d) most abundant type in earth's crust, made of magma/lava, contains no fossils

How does the motion of particles in a gas change as the gas cools