If a penny is 1.15 mm thick how many pennies are needed to reach the ceiling in a room where the height is 2.30 m

The minerals found in bones are deposited by living cells called

What effect does a decrease in temperature have on the overall rate of a chemical reaction? a decrease in temperature decreases . the reaction rate will

Most materials are not magnetic because their magnetism has worn off. their magnetic domains are arranged randomly. they lack magnetic fields. earth’s heat has destroyed their magnetism.