Answer:
A
Explanation:
At convergent boundaries magma is formed where water from a subducting plate acts as a flux to lower the melting temperature of the adjacent mantle rock.
The correct answer is - from solar nebula.
The Earth and the other planets in the Solar System are thought to have formed from solar nebula. This solar nebula is believed to have been a left over from the Sun's formation, being consisted of gas and dust in a disc-shape. The material in this disc-shaped gas and dust started to merge gradually, thus little by little forming bigger and bigger objects, and as the objects were getting bigger they had bigger gravitational pull so more and more material was attracted toward them. Because of the very big gravitational pull of the Sun these objects were not able to wander into the space but were instead kept close to the Sun. Because of the orbiting around the Sun, they all started to take a rounded shape. Some planets as the Earth, Venus, Mars, and Mercury became terrestrial planets, while the likes of Jupiter, Saturn, Uranus, and Neptune became gas giants.
Landslides along cut banks are common; a landslide along a cut bank affects the discharge of a river because the landslide the discharge would increase because the cross-sectional area of the river would increase.
Landslides are resulting from disturbances in the herbal stability of a slope. They are able to accompany heavy rains or comply with droughts, earthquakes, or volcanic eruptions. Mudslides broaden while water rapidly accumulates in the ground and results in a surge of water-saturated rock, earth, and debris.
The cross-sectional area is the place of a -dimensional form that is obtained while a three-dimensional item - which includes a cylinder - is sliced perpendicular to some special axis at a factor.
Cut banks are caused by the moving water of the river sporting away the earth. A factor bar then again is placed on the interior of a bend in a river (meander). Because the river curves around the bend within the river, the water slows down and sediment is dropped to the river bed.
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D. None of the above. We cannot predict earthquake
