Why do trade networks arise

a) because resources are unevenly distributed

b) because resources are expensive

c) because resources are valuable

d) because resources lead to subsistence

All of the following water masses touch an American border except 1) atlantic ocean 2) Hudson Bay 3) Great Lakes 4) Gulf of Mexico

A six-sided fair die is rolled 4 times in a row. The probability of getting a 4 only on the last trial is

What is the smallest ocean in the world?

What causes instability in planetary systems?

On the overlay, there is a concentration of higher magnitude earthquakes (blue dots) near New Madrid, MO (location of the early 19th century large earthquakes). Which statement is the best hypothesis to explain this observation? A.

Why are some volcanoes explosive and other non-explosive?

Surveyors in the 16th century could measure latitude with great accuracy, but measuring longitude was much more difficult, mainly because there were not instruments for giving:

What differences do you notice when you compare 1800 map with one from today?

Why does south america have several cultures?

Which describes granite and basalt? A. Granite is a fine-grained extrusive igneous rock, while basalt is a coarse-grained intrusive igneous rock. B.