What prevented oil fields from being created in central texas?

a.
the gulf of mexico

b.
older oil fields to the west

c.
younger oil fields to the east

d.
an underground mountain range

While viewing a topographic map, you notice a region in which the contour lines are very close together. what can you conclude about this region? a. it has a high population. b. it has a steep incline. c. it's near a political boundary. d. it contains a body of water.