Acid rain

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 ffrom 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 hhave 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, wwhich 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

only briefly.

B Trees Forest Damaged by Acid Rain Forests, lakes, ponds, and other

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