How are oceans and rivers barriers to human trade, movement, and migration?

Check all that apply.

A. They are a natural boundary.

B. They divide landmasses.

C. They can be hard to cross or navigate.

D. They might be hard to get to like the Amazon.

Following centuries of domination by European nations, Central America has had a difficult time finding a good political and economic balance. true or false

A comet is a meteoroid that travels through Earth's atmosphere and hits the surface. meteoroid that burns up in Earth's atmosphere, producing a streak of light.

Which of the following was not an effect of Bolsa Familia and the Program to Erradicate Child Labor (PETI) ? A. Child labor was eliminated in Brazil. B. 40 million families were lifted out of the lowest income level. C.

Compare the use of groundwater in pre-industrial times to industrial times.

Stratovolcanoes can create several volcanic hazards both during and after eruption events. Based on the animation, place the following volcanic hazards in chronological order based on when they would likely impact a town near the volcano after an

How does having a large lake or an ocean nearby affect the climate of an area?

In order to conquer Mexico, the Spanish

The climate of the United States can be best Described as. A. mostly arid B. mostly tundra C. Mostly Temperature D. Mostly tropical

Who is Nathaniel Greene

Who was one of the founders of the location-sharing site Foursquare? Dennis Crowley Aaron Swartz Josh Williams Scott Raymond Done answer A.