(7th grade question) Which are the causes of rocks being exposed at Earth’s surface?

A- erosion and subduction

B- extreme heat and pressure

C- melting and cooling

D- erosion and uplift

3. draw a topographic map that displays the following features: (4 points each) a. the contour interval is 20 meters. b. the point of lowest elevation is 960 meters. c. the point of highest elevation is 990meters. d. there is at least one sinkhole or depression, at any elevation. e. there is at least one steep slope and one gentle slope.