Which statements about surface gravity are true? Select all that apply.
a. Earth's surface gravity has no effect on the tides.
b. A 180-pound person on Earth weighs 30 pounds on the moon.
c. A space ship has the same mass on Earth as it has on the moon.

the part of the wave he is travelling on is the crest

hi,

what occurs during a solar eclipse?

there are small tides across earth.

the moon is between earth and the sun.

p.s. im not sure if the first answer is correct because during a solar ecliphse there are spring tides and i dont know if they are the same.