Which of these is MOST LIKELY to cause natural pollution?
a drought
B)heavy snow
C)an avalanche
D)volcanic activity

Heavy snow

Explanation:

Moreover, since many floods can be predicted (due to heavy rains or snowfall), heavy snow is the disaster that causes humans to make the most heroic efforts to save.

D) volcanic activity

Explanation: it’s releasing a large amount of smoke into the air creating air pollution.

could you attach a picture of the map?

polar areas, such as antarctica or the south pole.