<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>
<span>The right answer is B - an example of the president having an involvement in civic life might be throwing the first pitch at a baseball game. Involvement in Civic life implies participation in and support of the ordinary life of the citizens of the country. The other answers are all concerned with the promotion of the president or their policies or relate to international diplomacy.</span><span />
The beach moved because of landslide. This is a natural force.
Answer: Politicians, businessmen, and scientists.
Explanation:
The National Defense Advisory Commission (NDAC) was established in 1940 as part of the plan for applying science to the war effort.
The NDAC included seven experts in distinct fields of the economy, such as politicians, businessmen, and scientists. They were commanded to recommend defense materials required and the best way to obtain them. The commission was suspended on October 1941.
I think it is A. Because the factory owners would do anything to make more money. (they were greedy)
