@Xpilar Hello. Your digital image looks very beautiful. and this is also very good to describe. People who live in cities are very difficult to get clean oxygen. because of the large number of vehicles in the city, the amount of factory smoke, and the lack of trees.
even though clean oxygen is needed for the body. because oxygen is a food for all organs in the body. especially for brain organs that really need oxygen. therefore all people living in urban areas must jointly plant as many trees as possible. this is just my description of the digital image you are displaying.
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