Acid Rain
Acid rain is a type of precipitation that contains a higher level of acid than the normal pH level of natural rainwater, which is 5.4. This increased acidity is caused by certain gases such as sulfur and nitrogen oxides which dissolve in the atmosphere due to natural and human activities.
Acid rain is a type of precipitation that contains a higher level of acid than the normal pH level of natural rainwater, which is 5.4. This increased acidity is caused by certain gases such as sulfur and nitrogen oxides which dissolve in the atmosphere due to natural and human activities.