The Marine Environment
Practice Test
1.
What flat erosion surface is formed as a headland is worn away?
a.
wave-cut cliff
b.
wave-cut platform
c.
sea caves
d.
sea arches
2.
What breaks mid-ocean ridges into smaller sections?
a.
submarine canyons
b.
fracture zones
c.
abyssal plains
d.
shelf breaks
3.
What is causing relative sea level to drop along the West Coast of the United States?
a.
tectonic forces
b.
the melting of polar ice
c.
regional cooling
d.
global warming
4.
How are submarine canyons formed?
a.
rivers
b.
longshore current
c.
turbidity currents
d.
runoff
5.
How much would sea level rise if all the world's polar ice melted?
a.
10 m
b.
2 m
c.
70 m
d.
700 m
6.
How deep is the deepest place in the ocean?
a.
2 km
b.
11 km
c.
20 km
d.
100 km
7.
What is at each end of a tombolo?
a.
the mainland and an island
b.
a spit and the mainland
c.
a peninsula and a barrier island
d.
an island and a bay mouth bar
8.
According to the graph, what is the approximate depth range of ocean basins?
a.
8 km to 10 km
b.
2 km to 4 km
c.
1 km to 4 km
d.
6 km to 8 km
9.
What is a barrier island?
a.
a narrow ridge of sand that connects the mainland and an island
b.
a narrow bank of sand that crosses a bay
c.
a narrow bank of sand that projects into the ocean
d.
a long ridge of sand that is separate from the mainland
10.
What is the shallowest part of the continental margin called?
a.
the continental shelf
b.
a submarine canyon
c.
the shelf break
d.
the continental rise
