This question is generally related to the Olmec, Aztec, Incas and Indian tribes in North America.
For such civilizations the greatest geographic challenge was their isolation from the rest of Europe and Asia where modern science was completely changing the world.
Also, these civilizations had abundant farmland, game and food supplies yet North America rarely saw the development of large cities which limited their progress in human development.
Answer:
When Soviet leaders spent too much money on their military, the military was able to get the best managers, labor and materials. This caused the civilian sector of the economy to be unable to provide enough goods for the populace, thus contributing to the poor economic growth of the Soviet Union in the civilian sector.
Answer:
A shark is not a mammal.
Explanation:
Mammals are a classification of animals that are famously known for breathing oxygen/air, having fur/hair, mammary glands (which are responsible for the females' ability to produce milk for their young), and (usually) the live birth of their offspring.
Giraffes, dogs, and whales all have the qualities mentioned above. Sharks, however, do not.
Sharks are fish. Unlike the whale, which must go to the surface to breathe the necessary oxygen, sharks have gills. This possession of gills, and not lungs, allows them to breathe only underwater.
Since sharks can't breathe oxygen like mammals can, they are therefore not mammals.
Answer:
they made roads or paths
Explanation:
to move their armies around
