Fill in each blank with the correct word from the lesson.

1. There are three main _______ of pollution — air pollution, water pollution, and soil pollution — and all three are caused mainly by human activities.
2. _______ is when harmful substances get mixed into our air, water, or soil, making them dirty and dangerous.
3. Air pollution from factories and vehicles causes respiratory diseases and harms the env_______ment.
4. This creates a harmful _______ of gases and particles in the air called smog — which is common in big cities.
5. We can reduce air pollution by planting more trees, using public transport instead of private vehicles, switching to clean _______ like solar power, and never burning waste.

Choose the best option for each question.

1. What is smog?
   a) A type of cloudb) A harmful mix of smoke and fog in the airc) Rain mixed with chemicalsd) Smoke from fireworks only
2. What causes water pollution?
   a) Planting treesb) Factory waste and sewage in riversc) Rainfalld) Wind
3. Which action helps reduce air pollution?
   a) Burning plastic wasteb) Using more vehiclesc) Planting treesd) Using more factories

Write T for True or F for False in the brackets.

1. A harmful mix of smoke and fog in the air is one of the key concepts in the lesson on Types of Pollution.
2. A type of cloud is the main topic of this lesson.
3. Factory waste and sewage in rivers is one of the key concepts in the lesson on Types of Pollution.
4. Planting trees is the main topic of this lesson.

1. In your own words, explain what Types of Pollution means.
2. List two things you learned from this lesson on Types of Pollution.