Question

What message does this picture give us? How does this help keep the air clean?
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Answer 1

Answer:

this picture give us message that we should use handjecheif to sneeze

Answer 2

Answer:

This picture is showing that we should sneez on the handkerchief to avoid any other disease caused by air and to avoid to pollute the air. If we sneez on handkerchief Bactria from our nose will not suspended or enter in the air and can not cause any disease to another people.