What two names are given for the lines that run around the earth in and east-west direction

What two properties affect the density of ocean water

Why the moon is not visible from earth during the new moon ?

[ou.01]which of these is the most likely use of an electromagnetic wave which has wavelength shorter than microwaves but longer than visible light? o heat food safely o neat food safely o take images of bones and teeth o transmit radio and cellular phone signals o take images of bones and teeth o transmit radio and cellular phone signals o detect the location of objects which emit heat