The natural source of acidity in rain water is

carbonic acid
sulfuric acid
nitric acid
all of the above

Carbonic acid

Explanation:

Hello,

In this case, due to the increasing concentration of carbon dioxide in the atmosphere, when it rains, the following chemical reaction occurs between water and carbon dioxide:

Whose product is known as carbonic acid and it is the natural source of acidity in acid rain.

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heat or electricity in the atmosphere- c.

aquifers are bounded above and below by impermeable rock. the driving force of groundwater movement in confined aquifers is pressure, rather than gravity.