Which factors created cultural boundaries in Eastern Europe? Choose all that apply. ethnicity

language

plains

religion

seas

Witch of the following volcano hazards is made up of rocky particles about the size of a grain of sand

Mosses, lichens and shrubs can be found where in russia? a.grasslands b.mountain regions c.coastal plains d.siberian tundra

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