desert sand tends to have uniform grain size? true or false

the water in a lagoon is deep? true or false

rock that hardens from unsorted glacial debris is known as tillite? true or false

in cartography, a contour line (often just called a "contour") joins points of equal elevation (height) above a given level, such as mean sea level. a contour map is a map illustrated with contour lines, for example a topographic map, which thus shows valleys and hills, and the steepness or gentleness of slopes.

explanation:

the answer is true. hope it .