The Marine Environment
Practice Test
1.
Why is sea level still rising?
SC.D.1.4.3
a.
global warming
b.
the size of world glaciers is growing
c.
global cooling
d.
the destruction of ozone in the atmosphere
2.
Why is water in an estuary commonly brackish?
a.
Its chemistry is affected by sea grasses.
b.
It's a mixture of freshwater and salt water.
c.
It is a nursery for fish.
d.
It is moved with the longshore current.
3.
What is a narrow bank of sand that projects into the ocean called?
SC.D.1.4.2
a.
a lagoon
b.
a barrier island
c.
a bay mouth bar
d.
a spit
4.
How are fjords formed?
SC.D.1.4.2
a.
tectonic forces
b.
global cooling
c.
longshore current
d.
sea level rise
5.
__________ are submerged basaltic volcanoes more than 1 km high.
SC.D.1.4.2
a.
Fracture zones
b.
Seamounts
c.
Shelf breaks
d.
Submarine canyons
6.
According to the graph, at what depth does the sea floor start to drop off?
SC.D.1.4.2
a.
4 km
b.
2 km
c.
8 km
d.
1 km
7.
Water movement parallel to shore is called __________.
a.
longshore current
b.
upwelling
c.
rip current
d.
longshore bar
8.
What is the purpose of a breakwater?
a.
protect a harbor
b.
interrupt the natural longshore transport of sand
c.
provide anchorage for small boats
d.
protect the beach from storm waves
9.
What is the shallowest part of the continental margin calle
SC.D.1.4.2
a.
the continental shelf
b.
the continental rise
c.
the shelf break
d.
a submarine canyon
10.
What breaks mid-ocean ridges into smaller sections?
SC.D.1.4.2
a.
fracture zones
b.
abyssal plains
c.
shelf breaks
d.
submarine canyons
