Acid rain - Zewail City

Acid Rain1- Amr Mousa2- Esraa Hosny

BY3- Esraa Ezz4- Azza Gamal

Introduction

Have you ever been angry while watching TV and see such programs…

Introduction

We decided to make a new one here in Zewail City …

The ACID Rain Effect

1. The term “acid rain” was coined in 1872 by Robert Angus Smith “an English scientist”

2. In the 19th century, Forests showed

some signs of deterioration

Introduction

3. In 1950's acid rain was discovered

4. It appear in Scotland as acidic as lemon juice in 1974

Introduction

5. In 1984, half of the trees in the famous black forest in Germany had been damaged by acid rain.

Introduction

What do we mean by ACID RAIN ?

But now

• Acid rain is defined as “ A poisonous rain that has been made acidic by certain pollutants in the air ”

What are the types of ACID RAIN ?

Acid Rain

Wet Deposition Dry deposition

is another form of acid deposition, and

this is when gases and dust particles

become acidic

is rain, sleet, snow, or fog that has

become more acidic than normal

Both wet and dry deposition can be carried by the wind, sometimes for very long distances

In only2 or 3 days