What is the rocky mountain crest that divides the major east- and west- flowing river systems of north america called?
a: continental divide
b: rocky mountain summit
c: united sates partition
d: john muir trail

In the diagram below dab and dac are adjacent angles

Which of the following is an example of an outdated theory based on the consensus of the scientific community ? a. big bangb. geocentric solar systemc. heliocentric theoryd. plate tectonics answer : geocentric solar system

Why are young eastern european democracies at an increased risk for turmoil during a global recession? a) anger against increased democracy b) failure of the free market system c) government corruption d) lack of from the e.u.