The greater the amount of sulfuric and nitric
acid in the air, the greater the acid is in the rain.
pH is a symbol that describes or indicates how
acidic or basic a solution is, by the relative concentration of hydrogen
ion in a solution by using ratios. Most commonly occuring substances range
from zero to fourteen. Any number above seven is basic, and any number
below seven is acidic.
Diatoms first appeared 200,000 million years ago.
They first flourished in Mesozoic times; there are now 16,000 different
species. There are certain diatoms that produce domoic acid, which are
called pseudonitzschia, that are poisonous due to toxic pollution. The
acid rain and the pollution that consumes the diatoms effect the their
toxicity levels. As a result, fish who consume these diatoms die because
of the level of acidity.
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