Which country was divided into three estates prior to its revolution.
a. england
b. spain
c. france

The organ that has two atria and one ventricle is the

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

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