What produced the sulfuric acid that form the lechugilla caves
a.
microbes
c.
gas
b.
pollution
d.
people

In an oxidation-reduction reaction, oxidation is what happens when a reactant

Write two balanced equations 1. dissolving of solid sodium hydroxide in water 2. the reaction of sodium hydroxide solution with hydrochloric acid

The tilt of the earth's axis of rotation is responsible for the a) ocean's tides. b) size of the moon. c) brightness of stars. d) earth’s seasons.