2.
There are some way to reduce air pollution.  We need to do the following things. Firstly, Actively participate in activities for the environment such as planting trees... propagating and mobilizing people to join hands to protect the environment. second, Use reusable bags instead of single-use plastic bags; Put garbage in the right place… Finally, Save electricity and water, perform "off when not in use" To have a pollution-free environment, we need to join hands to protect and do useful things.

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