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The following are the events in a story of how people have interacted with a landscape put into chronological order:
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1. Dense forest with large trees on steep hills: There were steep hills covered by forests made by large trees. The roots of these trees ceased soil erosion from happening.
2. Hand logging near lakes: People began to cut trees for wood but the pace was not as fact.
3. Mechanized logging throughout hills: Techniques of mechanized logging were developed and which helped in clearing the trees from over the hills within months.
4. Erosion fills lakes with silt: Clearing of forests from over the hills caused soil erosion and the silt from the hills flowed down with rainwater runoff.
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:
South America's geologic structure consists of two dissymmetric parts. In the larger, eastern portion are found a number of stable shields forming highland regions, separated by large basins (including the vast Amazon basin). The western portion is occupied almost entirely by the Andes Mountains.
Explanation:
