UNIVERSE
PLANETARY INTERIORS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
If magma increases in temperature (get hot) what will happen?
|
|
It moves down (sinks)
|
|
|
It moves up (rises)
|
|
|
Either A or B
|
|
|
None of the above
|
Explanation:
Detailed explanation-1: -The molten rock, or magma, in such a chamber is less dense than the surrounding country rock, which produces buoyant forces on the magma that tend to drive it upwards.
Detailed explanation-2: -Since it is lighter than the solid rock around it, magma rises and collects in magma chambers. Eventually, some of the magma pushes through vents and fissures to the Earth’s surface. Magma that has erupted is called lava. Some volcanic eruptions are explosive and others are not.
Detailed explanation-3: -Although solid, the hotter mantle material will rise because of its greater heat. Convection is the process by which heated material rises and cooler material sinks.
There is 1 question to complete.