What is the population of antarctica?

What is the hottest recorded temperature on earth

Triangle with the the sides 72 and 75 and x. also other trsingle withsides 24 25 and 7. what is the value of x.

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