Which are the characteristics of a maritime polar air mass? a. cold and humid air b. cold and dry air c. warm and humid air d. warm and dry air

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

Name one type of data that h-r diagrams do not show.

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