Acid rain is a rain or any other form of precipitation that is unusually acidic, meaning that it has elevated levels of hydrogen ions. It can have harmful effects on plants, aquatic animals and infrastructure. 
						

							
Pollution is the introduction of contaminants into the natural environment that cause adverse change. Pollution can take the form of chemical substances or energy, such as noise, heat or light. Pollutants, the components of pollution, can be either foreign substances/energies or naturally occurring contaminants.
						

							
An acid is a molecule or ion capable of donating a proton, or, alternatively, capable of forming a covalent bond with an electron pair. The first category of acids are the proton donors, or Brønsted–Lowry acids.
						

							
Non-Living Elements
All ecosystems contain non-living components, which may also be referred to as abiotic or inorganic components. Air, sunlight, soil, rocks, minerals, water and precipitation are examples of non-living parts of an ecosystem. These components make life in an ecosystem possible.
						

							
The ecological effects of acid rain are most clearly seen in aquatic environments, such as streams, lakes, and marshes where it can be harmful to fish and other wildlife. As it flows through the soil, acidic rain water can leach aluminum from soil clay particles and then flow into streams and lakes.
						

							
Dear student 
Please ask single question in a thread , 
It will be easier for us to ans. 
Good Luck 
Cheers 
						

							
please dont ask many question in a single threat it is not easy to type a lot
if we exit question....................................
						

							
An acid is a chemical species that donates protons or hydrogen ions and/or accepts electrons. Most acids contain a hydrogen atom bonded that can release (dissociate) to yield a cation and an anion in water
						

							
The non-living components of the environment are known as abiotic factors. ... While ecosystems may be bound and individually discussed
						

							
Pollutant is any substance already present in environment or a new substance whose concentration increases to undesirable proportions causing danger to living organisms or other materials. Pollutants are the substances which cause pollution. Pollutants can be physical or chemical.
						

							
Acid rain is a rain or any other form of precipitation that is unusually acidic, meaning that it has elevated levels of hydrogen ions (low pH). It can have harmful effects on plants, aquatic animals and infrastructure.
						

							
: Acid rain either falls directly on aquatic bodies or gets run off the forests, roads and fields to flow into streams, rivers and lakes