A. Silt is no longer carried down river.
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.
Mexico has the greatest number of diversity of animals and plants. That's why its an megadiverse country.
The country with the highest percentage of people practicing Isalm is Afghanistan with 99.8 percent of the population practicing :)
