Today I’m going to talk about: Acid rain
I’ve divided my presentation into two parts:
First I’d like to introduce of acid rain and second I’ll say same
effects of acid rain.
So, let’s start with introduce
Acid Rain, form of air pollution in which airborne acids produced by
electric utility plants and other sources fall to Earth in distant regions.
The corrosive nature of acid rain causes widespread damage to the
environment. The problem begins with the production of sulfur dioxide and
nitrogen oxides from the burning of fossil fuels, such as coal, natural
gas, and oil, and from certain kinds of manufacturing. Sulfur dioxide and
nitrogen oxides react with water and other chemicals in the air to form
sulfuric acid, nitric acid, and other pollutants. These acid pollutants
reach high into the atmosphere, travel with the wind for hundreds of miles,
and eventually return to the ground by way of rain, snow, or fog, and as
invisible “dry” forms.
Finally let’s consider: with effects of acid rain
Acidic substances have pH numbers from 1 to 6—the lower the pH number,
the stronger, or more corrosive, the substance.
A Soil. In soil, acid rain dissolves and washes away nutrients needed
by plants. It can also dissolve toxic substances, such as aluminum and
mercury, which are naturally present in some soils, freeing these toxins to
pollute water or to poison plants that absorb them. Some soils are quite
alkaline and can neutralize acid deposition indefinitely; others,
especially thin mountain soils derived from granite or gneiss, buffer acid
B Trees Forest Damaged by Acid Rain Forests, lakes, ponds, and other
terrestrial and aquatic environments throughout the world are being