there are still gases in the atmosphere without any other sulfur oxide evaporating like nitrous oxide and carbon dioxide.
As rain falls through air born pollution, the rain becomes slightly acidic. It this acidity that attacks the stone work and fabric of monuments and buildings. Acidic rain also causes stunted plant growth and will even kill off trees that are growing in the prevailing acidic rain pattern.
It likes slightly acidic and can even stand slightly alkaline, the range is around 5.5 - 8.0 pH
Yes, ever since the early 20th Century 'light pollution' has become a problem without people even being aware of it.
Beer is more acidic than blood. The pH of beer typically ranges from 3.5 to 4.5, while the pH of blood is around 7.4, making blood slightly alkaline.
Most mouthwashes are slightly acidic, with a pH ranging from 4 to 7. This acidity can help in combating bacteria and germs in the mouth. However, some mouthwashes may be formulated to be more neutral or even slightly alkaline.
There is pollution everywhere on earth, even Antarctica.
It depends on the type of soap used. Most traditional soaps are slightly basic (alkaline) with a pH above 7. However, some specialty soaps or detergents may be formulated to be more neutral or even slightly acidic.
Rainwater typically has a slightly acidic pH due to the presence of dissolved carbon dioxide, which forms carbonic acid when combined with water. The pH of rainwater can vary depending on factors such as location and pollution levels in the atmosphere.
Electric cars must be manufactured, and that process causes pollution. Electric cars also require energy that must come from somewhere, and even solar cells must be manufactured, and therefore cause pollution in the manufacturing process. Humanity must learn to manufacture without causing pollution, or learn how ro deal with pollution.
Oddly enough nearly all garden plants like a slightly acidic soil and dahlias are no exception. They will be very happy at about pH 6.5 or even a bit lower. Ray
Helium does not react with air, even under extreme conditions. So Neither Acidic or Basic
There is no country free of pollution as even if it does not pollute itself (eg Antarctica) it is affected by the pollution form other countries.