Answer : a mountain or a hill that is being created on the Earth's crust when magma lands on the surface.
A volcano is also referred to as the vent that facilitates the transport of molten rock from deepest part of the Earth towards the its surface. The magma or the molten rock that erupts from the volcano is called lava. Lava is responsible for the construction of the cone that surrounds the vent of the volcano. A volcano that erupts magma turned to lava is called and active volcano while the volcano that has not erupted for quite some time is called dormant volcano.
False, sources of salt water are ocean, sea water, <span>Some of the ocean's salts have been dissolved from rocks and sediments below the sea floor</span>Others have escaped from the Earth's crust through volcanic vents as solid and gaseous materials.
What’s the whole question asking what are the options??
Pretty sure it was Galileo
By observing how seismic waves are absorbed and refracted, scientist have been able to work out where the properties of the earth change dramatically. our understanding of the internal structures of the earth and the size of its core is based on these observations.
basically:
size of core
structure of the earth I.e. the layers of the earth
and I think the last one is how the internal structure is changing? not sure on the last one but its still a solid guess.