How does water ‘disappear’ into solid ground? Where does it go? Can we get it back once it has disappeared?

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

The largest employer of cartographers is the

Which planets are likely to have the strongest gravitational fields?