Which part of the atmosphere is nearest to the earth?
a. troposphere
b. ozone layer
c. stratosphere
d. ionosphere

The oil and gas found in the middle east are regulated by a. organization of petroleum exporting countries b. southwestern asian oil refineries c. north atlantic treaty organization

The standard deviation of a population is 3.2.what is the margin of error? enter your answer in the box.

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.