The dissolution of the union of soviet socialist republics
-had no effect on the united states
-affected nations throughout the world
-reduced the number of communist nations in the world
-increased the number of communist nations in the world
-changed boundaries in europe
-decreased conflict in eastern europe

In the developed world, describe the changing role of women in agriculture.

Which of the following best describes the purpose of a nation’s boundaries? a. to limit the movement of goods and people b. to make it easier for cartographers to create maps c. to make the movement of goods and people easier d. to prevent other countries from invading territory

Some gamma ray bursts are hypothesized to come from mergers of neutron stars or black holes. if this hypothesis is correct, what else should we in principle be able to detect from such mergers? a. gravitiational waves b. x-ray bursts c. significant disruption of gas thousands of light-years away in the surrounding galaxy d. an "afterglow" of bright visible light, lasting for weeks