Geography word help please

A/an map shows the types of rock and/or sediment present in a particular region. a map that uses a range of colors and shading to represent the elevation, depth, or landscape of specific features on earth is a/an map. to show the dominant weather pattern in a region over a long period, a scientist is likely to create a/an map. a map has contour lines, which connect points at the same elevation. a map that uses shading to represent rates of violent crime across a state is an example of a/an map.

Distance that the transcontinental railroad covered from omaha to san francisco.

Which of the following best describes the circumstance under which countries block the importation of certain products into their country? a. importation blockade b. trade barrier c. trade inhibitor d. domestic protection act