Answer: Usually on a map, solid lines represent boundaries between nations, or if it is a map of the states, it would represent the borders of the states.
Explanation:
Answer:
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Explanation:
The troposphere is wider at the equator (10mi) than at the poles (5mi). ... Water vapor concentration varies from trace amounts in Polar Regions to nearly 4 percent in the tropics. Most prevalent gases are nitrogen (78 percent) and oxygen (21 percent), with the remaining 1- percent consisting of argon,).
sedimentary rocks are made from fossils igneous is from lava
