<span>In real life, the presence of friction. Choice B</span>
Answer:
Minerals
Explanation:
Gases are natural and in the ground, metals are also in the ground as are non metals -just look at dirt- and minerals are usually found in geodes, which are usually fallen bits of asteroid and meteorite that has survived earth's atmosphere
Answer:
they help lower the activation energy of chemical reactions
1: over population
2:disease
3: Darwinism.
