Pollution

1. the introduction of harmful materials into the environment

2. Major types of pollution

2.1. Air Pollution

2.2. Land Pollution

2.3. Water Pollution

3. Pesticides

4. Consequenses

4.1. Increased risk of heart attack, wheezing, coughing, and breathing problems

4.2. The death of aquatic creatures

4.3. Various problems on the skin, respiratory problems, and even different kinds of cancers.

5. Causes

5.1. Cars

5.2. Burning coal to create electricity

5.3. Industries and homes generate garbage