Answer:
As the slab gets to a certain depth, it gets hot enough that it start to melt again. As it melts, it undergoes differentiation and also gets less dense. Low density means that it will start to rise back up again, usually, as granitic magma.
Explanation:
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Sometimes it's for religions . <span />
good jobs , better environments, good living, education,more food
Collective bargaining is the process of negotiating terms of ... much more prevalent in the public sector, with 33.6% of these workers unionized,
Imperalism by definition is the policy of expanding your countries power through military or diplomatic means. And expanding your country to another continent, with many resources untapped and people of inferior technology means you could easily conquer and expand
