Question

What Affect has the global quarantine had On air quality world wide.?

Answer 1

Answer:

In some areas, it has cleansed the atmosphere.

Explanation:

Since people are supposed to leave only out of necessity, they have been using their vehicles less, therefore, the pollution is decreasing.  

Answer 2

Answer:

It's helped prevent pollution and clean the air.

Explanation:

People are only supposed to leave their home for necessity, so less cars are being used, therefore there is less pollution from cars.