The two most common minerals located in Earth's crust are B) Feldspar and quartz
(Earth Science- Geology, the Environment, and the Universe book)
Answer: Subduction happens and one plate moves below the other. Magma seeps up along plate boundaries and forms mountains.
Explanation:
The correct answer is A. magma
Magma is just lava but when it's inside of the volcano. When it leaves the volcano it becomes lava.
The melting temperature of materials is affected by the pressure they are under. So when "rock" in the Earth's mantle experiences a decrease in confining pressure, not only does it expand, it's melting temperature drops. If the melting temperature of the material drops below the background (also known as the
in-situ
) temperature, then melting will occur and in this case magma will form.
Answer:
-52 and 1/2 or just -52.5
Explanation:
1/3x=-18+1/2
1/3x = -36/2+1/2
1/3x = -35/2
x= -35/2 / 1/3
x= -52 and 1/2 = -52.5
