In rome, the group (class) of people who enjoyed special privileges was known as:
patricians
plebeians

Blank is a naturally occurring gas that's found in most soils and rocks and can cause lung cancer

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

What is the relationship between groundwater and aquifers?