as distance from an object decreases , the pull of gravity on that object increases & the moon is the celestial object that is closer to the earth than the sun -> the levity releasing from the sun on space is greater than the moon on space the gravity pull from the moon on earth is greater than the sun on earth  the levity releasing from the sun on space is greater than the moon on space & the cause of something affects that something & the gravitational pull of the sun on earth 's oceans causes the tides & the gravitational pull of the moon on earth 's oceans causes the tides -> the gravitational pull of the moon on earth affects the tides more than the gravitational pull of the sun