ANSWER:
D. A system of desktops
<span>Civilizations wanted to settle and build cities and/or outposts along trading routes for so it would be easy to acquire what they didn't have, and sell what they did, and gain economic prosperity. These became the most desirable and wealthy spots, and thus were fought over in wars.</span>
Answer:

Explanation:
A line has a general equation of
where b is the y-intercept and slope of m.
Since
is the value of y when
, it is the point of intersection of the line with the y-axis, hence the y-intercept is
.
We are given the slope is
So the equation of the line is
The demographic blow to Eurasian population that has as consequence effect on climate greater than deforestation, this hypothesis is based on the assumption that some events led to abrupt demographic changes that led to the abandonment of cultivated lands in which vegetation grew again and absorbed more carbon dioxide.