The inner core is solid because it is made of very dense, or heavy, materials - like iron and nickel. Even though it is very hot, these materials don't "melt" very easily, so they stay solid. Also, pressure due to the weight of the mantle and crust, atoms are forced together as solid.
Mass movement<span> is the </span>movement<span> of surface material, such as soil, rocks and debris, caused by gravity and other underlying conditions, such as water, wind, ice and human activity.</span>
<span>D. Because the northern parts of Mexico are very dry.
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the nuclear stockpile of the United States peaked in 1967
Globalzation uses up recources quicker, it increases carbon minoxide emissions, and it increases oil prices.
Hope this helped!
