The correct answer is - C. destruction of the Aztec empire by conquistadors.
The Spanish, when arrived on the Mexican mainland, saw that there's a great and strong civilization there, and that civilization, the Aztecs, were controlling big portion of the region.
In order to be able to establish their rule and get hold on to the riches of the region, the Spanish new that they would have to destroy the Aztec empire, and they did that by making alliances with the people that were under their rule, and were despising the Aztecs because of their violent rule.
The Spanish used the knowledge of the terrain of the native tribes, as well as their knowledge of the war style of the Aztecs, so the Spanish managed to defeat them with relative ease, and got hold on the region.
Burning coal, oil and gas produces carbon dioxide and nitrous oxide.
Cutting down forests (deforestation).
Increasing livestock farming.
Fertilizers containing nitrogen produce nitrous oxide emissions.
Answer:
c. The downgoing slab takes along water, and that water lowers the temperature at which rock melts to allow melting in and near the slab.
Explanation:
A subduction zone occurs when one of the plates at convergent boundaries, an area where tectonic plates meet, is an oceanic lithosphere.
These oceanic plates are high in temperature on formation but as they cool, they descend into the mantle below. This descent applies pressure until water is liberated from the lowering crust. The water in turn rises into the surrounding mantle and lowers the temperature at which the rocks melt to produce magma which are partly melted rocks.
This liberation of water from the subducting crust and accompanying melting is responsible for the formation of almost all magma at subduction zones.
