1.       1.A spring tide is a
A) small tide formed when the Sun and Moon are 90^o out of alignment
B) large tide formed when the Sun and Moon are 90^o out of alignment
C) small tide formed when the Sun and Moon are aligned
D) large tide formed when the Sun and Moon are aligned

2.    2.What t is the form of energy that drives the displacement of water in the tides?
A) Wind
B) Gravitational pull of the moon and sun
C) Nuclear energy
D) Density differences

3.       Ocean waves:
A) have a continuous flow of water in a particular direction.
B) oscillate water in circles, ending up where they started
C) are found only near coastlines
D) are found only near closely spaced islands
E) are found only in the central oceans

4.       What is one of the forms of energy that drives the displacement of water in waves?
A) Wind
B) Thermohaline differences
C) Nuclear energy
D) Whales

5.       Ocean currents:
A) are continuous flows of water in a particular direction
B) travel in circles, ending up where they started
C) are found only near coastlines
D) are found only near closely spaced islands
E) are found only in the central oceans

6.       What is one of the forms of energy that drives ocean currents?
A) Wind
B) Gravitational pull of the moon and sun
C) Nuclear energy
D) Whales

7.       What is the difference between surface currents and deep-water currents
A) The energy that drives the movement of water
B) One displaces water and the other moves water
C) They are both the same
D) One occurs only in rivers and the other in oceans