Question

question 1
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lava differs from magma in that:
select one:
oa. lava is more mafic in composition
b. lava has traveled to the surface of the earth
oc. lava has already crystallized
od. lava is below the earths crust
clear my choice
question 2
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Explanation:

Magma is molten rock beneath the Earth's surface. When magma erupts onto the surface, it is called lava. The key difference is the location - magma is underground, lava is on the surface. Option a is incorrect as composition isn't the defining difference. Option c is wrong as lava hasn't crystallized yet (it solidifies later). Option d is incorrect as lava is on the surface, not below the crust.

Answer:

B. Lava has traveled to the surface of the Earth