I dont understand this

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 climate of the himalayas? a. cold and wet c. cold and dry b. hot and humid d. hot and dry

Need this asap : ( which type of wetland is most likely found in warm, forested areas? bogs swamps salt marshes inland marshes