What does a particular point on a line of a phase diagram represent? A. The melting point or boiling point of a substance at a specific
pressure
B. The conditions in which temperature and pressure have equal
effects on a substance
C. The pressure created by the kinetic energy of molecules at a
particular temperature
D. The maximum temperature a substance can exist at without
bonds breaking

They are like other investigations? say there was a murder u have to do blood test and finger prints which run through a lab. 

1. why does the same side of the moon always face earthc.the rotational period of the moon is equal to one revolution around earth2. which is greater the moons period of rotation or its period of revolution  b.the moons revolution period around earth3.what was the major accomplishment of the apollo missions  c.sending the first human into space4. which of these space missions involved the deployment of lunar roversa. voyager 15. which scientists are going to explore next on kepler-186fd. evidence of existence of life6.which mission is not going to explore the outside of the solar  systemb.safir7.which technology limit the future of space explorationb. scientist must first develop certain technologies before missions can be completed.