but mainly the Moon because the Moon is..
1. closer
2. larger
3. denser

two high tides and two low tides make...time period
1. 12-hour
2. 16-hour
3. 24-hour

Moon creates...on two opposite sides
1. tidal bulges
2. moon phases
3. orbits

Moon and sun are oriented...which gravitationally pulls water
1. in a straight line
2. at a right angle measuring 90 degrees
3. at an acute angle measuring 23 angles