Aregion is defined by common human proporty such as the presence of people who share particular language, region, nationality, political identity, or culture; or by a common physical property, such as the pretense of a particular type of climate, landform, and vegetation.

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

Following lenin’s death, who took control of the soviet union

Canada must balance the economic opportunities offered by its natural resources with the need to maintain links to the united states maintain high tariffs preserve the environment protect its borders