A darker line with an elevation written on it on a topographic map is called?

Use the maps in this pdf file to answer glacier topographic questions, the first map is a blown up map area of the following 4 maps: Glacier TOPO.pdf On the 4rd page/map. What glacial feature is running east-west across the middle map?

Which one is NOT a type of a volcano?

This rock is a chemical sedimentary rock:

What is the sediment eroded from mountains by glaciers called?

We think the outer core is liquid. What measurable evidence do we have for this?

Sand, Silt, Gravel, and Clay are types of what?

Several of the rocks we look at fizz when you put light HCl acid on them. What mineral are they all made of?

How do we classify igneous rocks?

What type of igneous rock forms underground?