Question 1
the tides correspond mainly to which of the following effects between earth and the moon?
a single large bulge of the oceans on the side of earth facing the moon, under which the more solid portion of earth rotates
an oscillating sloshing back and forth of the oceans caused by the moon going by more quickly than earth rotates
a pair of large bulges of the oceans on both the side of earth facing the moon and the opposite side, under which the more solid portion of earth rotates
flattening of earth due to the higher rotation rate that the moon causes it to undergo
a steady standing wave in the oceans caused by the moon going by more quickly than earth rotates
question 2
which of the following is mercury's most prominent geological surface feature?
a large impact crater measuring about 1400 km across and ringed by mountain ranges
cross-hatched regions of mountain ranges caused by interior tectonic stress
a large flat plain on its sunward side caused by melting of rocks on its surface
a 4000-km long valley that shows erosional features at its edges
sulfur volcanoes that result from internal tidal stress