Why do magmas rise toward Earth's surface? Why do magmas rise toward Earth's surface? Magmas are more viscous than solid rocks in the crust and upper mantle. Most magmas are richer in silica than most crustal and upper mantle rocks. Magmas are mainly liquid and contain dissolved fluids such as water; most are less dense than the adjacent solid rock. all of the above
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Geography, 21.06.2019 19:50
Gold is not now being extracted from seawater. why not? a. it would be too disruptive to marine life to develop any marine mineral resources b. there is no gold in seawater c. we don't know how to extract minerals from seawater d. it would be too costly and difficult to separate the small amount of gold from the very large amounts of halite and other minerals
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Geography, 22.06.2019 10:30
If x ≤ 25, which could be the perimeter of this rectangle? a) 100 in b) 155 in c) 225 in d) 750 in e) 1500 in
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Geography, 23.06.2019 16:40
To obtain a microcredit loan, a person typically must a. be a male and have a source of income b. provide collateral and sign paperwork c. verbally promise to pay back the money d. have a good credit history select the best answer from the choices provided. a b c d
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Why do magmas rise toward Earth's surface? Why do magmas rise toward Earth's surface? Magmas are mor...
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