In some cities people are choosing cars instead of bicycles, while in other cities riding bikes is replacing cars. why is this the case? which development do you think this better?

Air

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pollution

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in big

cities

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has become a big

problem

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nowadays

,

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apply

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because many diseases are caused by

air

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pollution

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. In

this

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essay, I want to tell in what way we can solve

this

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global

problem

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. One of the important

causes

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of

air

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pollution

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incineration of waste in factories.the smoke from burning waste

causes

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great harm to the environment.

Therefore

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, the emissions from vehicles

such

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as cars, buses and motorcycles, have a big effect on the

atmosphere

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.Another factor

that is

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determined widely is the development of

oil

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production.Toxic gases from

oil

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refineries cause black clouds in the lower

atmosphere

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, which directly affect people's lifestyles.

This

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problem

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has been developing in recent years in large

cities

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with high

oil

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demand.

In addition

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, many people are throwing rubbish in the street, which

causes

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little damage to the

atmosphere

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. In order to solve these problems caused by the factors mentioned above, there are some following beneficial solutions.

Firstly

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, the government should have a resumption of

oil

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refineries than usual strategies to reduce private transportation types

such

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as motorbikes, cars by developing public vehicles and using green energy sources to

oil

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factories energy sources in order to reduce greenhouse gas emissions.

Secondly

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,

implementation

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the implementation

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of tree plantation projects in big

cities

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is

also

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an important and necessary solution to refresh the

atmosphere

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. In conclusion,

air

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pollution

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is still currently a serious

problem

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in many big

cities

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throughout the world and

this

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problem

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is caused by different factors but most of the

causes

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for

this

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are from people