The vast pollution which occurs globally can have a significant impact on air quality on a local scale. The reason for this is quite simple: polluted air can easily get trapped beneath a cloud cover, or be literally "blown" away to other locations, and when much polluted air gets accumulated, it can have devastating heath effects on a local population, not just to humans, but to animals and plants as well. Overall, the vast global pollution can effect the smallest of regions on an unprecedented scale.
Answer: your answer for number 1 is decade millennium or century
Your answer for number 2 is a d or b .
Hope this helps.
Explanation:
In addition to a desire for economic profit, nationalism also served as a reason for colonization. After the French Revolution, European nations had a strong sense of national pride, and felt that in order to prove themselves as a strong world power, they would need to gain control of other countries.
B) The Nile River for a fact! I'm absolutely positive!!! Hope this helps!