HELP RIGHT NOW PLEASE 1.) crust
2.) mantle
3.) outer core
4.) inner core

a.) a solid layer made up of part continental and part oceanic
b.) a solid layer of iron and nickel inside Earth
c.) the only liquid layer of Earth
d.) a nearly melted layer right under the Earth's surface.

What causes temperature extremes in the desert

Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. release your mouse button when the item is place. if you change your mind, drag the item to the trashcan. click the trashcan to clear all your answers. label the following topographic map. click on a label below the map to select it, and then click on the appropriate box on the map to place the label. (increments for contour lines is 50 ft).

What causes darkening of the skin as melanin production increases