I’m in AP Human Geography, and my textbook doesn’t have any of these definitions. If anyone can help define and give examples of any of these, I would be very grateful!!!

Which of these has the least impact on the climate of a place

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

How many structures do prokaryotic cells have in common with the eukaryotic cells? a. 2b. 3c. 4d. 5