Question

1. mixed semidiurnal tides are characterized by:

two daily high tides, one higher than the other.
two daily high tides, both of the same approximate height.
two daily high and three daily low tides.
one daily high tide.
one daily high tide that is always higher than the high tide of the previous day.
question 24

1. how long is a full tidal cycle?

one month
24 hours
one week
24 hours and 50 minutes

Explanation:

Question 23

Mixed semidiurnal tides have two high tides daily with different heights (and two low tides with different heights). The first option matches this: "two daily high tides, one higher than the other." The second option is for semidiurnal tides (equal heights), third is incorrect (tide cycles don't have three low tides daily), fourth is diurnal tide, fifth is incorrect.

A full tidal cycle (time between successive high tides) is about 24 hours and 50 minutes, due to the Moon's orbital motion around Earth (it moves eastward, so Earth needs extra time to catch up for the tidal "bulge" alignment). Other options: one month is lunar month, 24 hours is solar day (not tidal), one week is incorrect.

Answer:

A. two daily high tides, one higher than the other.

Question 24