Answer:
The presence in the air of one or more contaminants in such a concentration and of such duration as to cause a nuisance or to be injurious to human life, animal life or vegetation.
Answer:
banff national park
mountain recreation and galcial lakes
Answer: noun
Explanation:the study of the physical features of the surface of the earth and their relation to its geological structures
C) 30 miles is the correct answer
(I’m not sure but I think so)
B. through the Treaty of Paris, at the end of the Seven Years’ War