Answer:
Lincoln did not believe he, as the president, had the power under the Constitution to abolish slavery where it already existed. Nor did he want to anger the four slave states that remained in the Union. He also knew that most Northern Democrats were against emancipation.
Explanation:
<span>People are "pushed" away from the rural areas because of the lack of opportunities in such areas. Many young people are also "pushed" by a lack of cultural/social opportunities in the rural areas. "Pull" factors are those that make people want to come to a given place.</span>
A: Focusing on one source of information
<span><span><span>The crust: low density silicate rock, 5-70 km thick. There are two distinct types of crust.<span><span>Continental crust is variable in thickness and composition. Thickness ranges from 5-70 km. The composition ranges from mafic to felsic.</span><span>Oceanic crust is uniform in thickness and composition. It is 5-6 km thick and is mafic in composition.</span><span>The differences in thickness and density between continental and oceanic are responsible for the existence of ocean basins due to isostatic balance as the crust floats on the more dense mantle.</span></span></span><span>The mantle: high density, ultramafic silicate rock which can flow when subjected to long duration stresses. The mantle is over 2900 km thick and makes up over 80% of the volume of the Earth. The mantle is not molten!</span></span><span>The core: iron and nickel, liquid outer region with a solid center. The core is just over half the diameter of the Earth.</span></span>
