Write note on the following (a) Acid rain (b) HIV Education. Under the following sub heading. (A) Acid rain *Definition *Acid rain forming gases *Formation of rain with chemical balance equation. *Effect of Acid rain (B) HIV Education *Types of sexually transmitted disease STDs *HIV status *Signs and symptoms of HIV/AIDs *Various ways HIV infection can be prevented. *Benefits of the HIV test. 2. Write the chemical formula of the following 1. Caustic soda 2. Baking soda 3. Washing soda?

Emmyrosh

4 years ago

Acid rain is rain or any other form of precipitation that is unusually acidic, meaning that it has elevated levels of hydrogen ions (low pH). Most water, including drinking water, has a neutral pH that exists between 6.5-8.5, but acid rain has a pH level lower than this and ranges from 4-5 on average.The more acidic the acid rain is, the lower its pH is.Acid rain can have harmful effects on plants, aquatic animals, and infrastructure.
Acid rain results when sulfur dioxide (SO2) and nitrogen oxides (NOX) are emitted into the atmosphere and transported by wind and air currents. The SO2 and NOX react with water, oxygen and other chemicals to form sulfuric and nitric acids. These then mix with water and other materials before falling to the ground.