Well, we hope that the Environmental Protection Agency (EPA) is working on that problem.
Acid rain.
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Vinegar is an acid (acetic acid). It will oxidize metals (causing them to rust)...which can look black.
They are not doing anything... They are not doing anything...
Environmental Protection Agency EPA
Policies vary so you will meed to check with your agency. Though, acid rain most likely is not covered, it could b considered damaging to your vehicle, so there is always a slight chance it is covered. Again, you should ask your agency.
Environmentalists actively teaching the public and pressuring industries to reduce acidic emissions.
Vinegar is used as a preservative which is essentially a solution of acetic acid in water. The federal requirement for acetic acid in vinegar is 4 g of acetic acid per 100 mL of vinegar.
There are several companies who produce Perchloric acid. These include the Federal Equipment Company, Prasol, Vertex Chemical Corporation and Continental Chemical USA.
Dead plants, dead animals, animal waste, nitric acid rain (made by lightning and the spark when starting a car), and nitrogen fixing bacteria (e.g. rhizobuim).
The Australian science agency CSIRO is collecting samples and measuring for acidity. Due to the sparse population between cities the effects of acid rain impact the forest rivers and lakes.and are a hazard for all.