Acid Rain, better described as Acid Pollution, occurs when too much Nitric and Sulfuric gas meets with any form of precipitation. This can be rain, snow, fog, hail, dust, and gasses. If it's formed with wet materials it's called wet deposition, and if it's formed with dust or gasses it's called dry deposition.

This video goes over the basic aspects of Acid Rain. Watch it to get a grasp on what it actually is.

Acid Rain doesn't hold back when it comes to trees & plants. It leaches aluminum from the soil that can be harmful to plants and animals. It also removes nutrients & minerals from the soil that trees need to grow. At higher elevations, acidic clouds can even remove nutrients from trees' foliage, leaving them with brown or dead leaves. This means the trees get less sunlight, which makes them weaker and less able to survive in freezing temperatures.

However, this doesn't mean it goes easy on the water. In fact, it might as well go harder on the water. If it gets in the water, Acid Rain will lower the pH and kill most of the animals in the lake. In fact, if a lake has a pH of under 4, it's considered dead. Another rather weird effect it has on lakes is, and no, I'm not kidding, turning them to jelly. Strange, but that shows just how low the pH really is.

Quoting the EPA, "Walking in acid rain, or even swimming in a lake affected by acid rain, is no more dangerous to humans than walking in normal rain or swimming in non-acidic lakes." This doesn't mean that Acid Rain doesn't hurt humans though. While it's in precipitation form or in lakes, it can't hurt us, but before that happens, when it's still gas, it can definitely hurt us. If we breathe in the chemicals, it can affect our heart and lung function.