It is because of subduction<span>: oceanic crust tends to get colder and denser with age as it spreads off the mid-ocean ridges. It gets so dense, that it sinks in the upper </span><span>mantle </span><span>(subduction). This is like a giant recycling system for oceanic lithosphere! Because continental crust is lighter than oceanic crust, continental crust cannot subduct. We therefore still have some very </span>old continental rocks<span> at the surface of the Earth.</span>
Answer:
Galveston built a massive seawall to turn back storm-generated waves.
Explanation:
Answer:
the Vietnam war and Tet offensive are major cause of loosing faith in political system
Explanation:
During the time between 1960s and 1970s, there were many factor involved due to which people lose faith in the political system. The Vietnam war is one of them. Ii is because there is large difference in information given by government agencies and what people observe from ground zero and this lead to widened the gap between the government and people.
Moreover, when the Tet Offensive (SERIES OF ATTACKS ) was introduced in 1968 by North Vietnam, the masses started to question the government authenticity.
