Sujon: Hello Farjana! How are you?
Farjana: I am fine. What about you?
Sujon: I am fine too. But I am little worried about air pollution.
Farjana: Oh, I see. Nowadays it has become a great problem which is creating a constant threat to our life
Sujon: Exactly! Air is being polluted in many ways though it is called life-giving force.
Farjana: Absolutely! The most common agent that pollutes air is smoke.
Sujon: Yes, smoke pollutes air. Moreover, railway engines, bus, trucks, also use petrol and diesel oil. All these things create smoke and cause air pollution.
Farjana: You are right. Smoke of all kinds produces carbon monoxide and carbondioxide and thus pollute air.
Sujon: You might have noticed that the most serious air pollution occurs in big industrial areas where there are many big mills and factories.
Farjana: Yes. Besides, it occurs in big cities where many buses, trucks and cars move on the roads every day.
Sujon: Deforestation also plays an important role in air pollution by increasing CO2 in the atmosphere.
Farjana: You are right. And due to air pollution, our environment is getting warm and losing its balance.
Sujon: Exactly! Besides, polluted air is causing different incurable diseases to human beings.
Farjana: But we must take steps to reduce air pollution. To ensure a healthier and happier life, there is no alternative to keep air free from pollution.
Sujon: Of course. We all should be aware and protect our air from further pollution. Thank you.
Farjana: You are most welcome. Bye and see you again.
