Heat rising in the mantle creates ..... boundaries, while the sinking of cold magma creates ..... boundaries.

EARTH SCIENCE

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

Heat rising in the mantle creates ____ boundaries, while the sinking of cold magma creates ____ boundaries.

A	convergent, transform
B	transform, divergent
C	divergent, convergent
D	None of the above

Explanation:

Detailed explanation-1: -At divergent plate boundaries hot mantle rock rises into the space where the plates are moving apart. As the hot mantle rock moves upwards, less material is pushing down on it and the pressure decreases. The rock is under lower pressure; this lowers the melting temperature of the rock and so it melts.

Detailed explanation-2: -A divergent boundary occurs when two tectonic plates move away from each other. Along these boundaries, earthquakes are common and magma (molten rock) rises from the Earth’s mantle to the surface, solidifying to create new oceanic crust.

Detailed explanation-3: -Divergent Plate Boundaries At a divergent boundary, tectonic plates move apart from one another. They never really separate because magma continuously moves up from the mantle into this boundary, building new plate material on both sides of the plate boundary.

Detailed explanation-4: -Divergent boundaries. Divergent boundaries occur along spreading centers where plates are moving apart and new crust is created by magma pushing up from the mantle.

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