NEW
Font size
WorksheetsSeafloor Features, Hydrothermal Vents and Coral Reefs Review
Total questions: 31
Worksheet time: 16mins
What type of continental margin is found at the Atlantic coast, has wide and shallow shelves and little seismic activity?
inert
active
passive
fringing
What is the area called that extends from the major land masses underwater (people swim in this area of the ocean)?
continental shelf
continental slope
continental rise
abyssal plain
What most likely formed submarine canyons?
earthquake activity
deep rivers
turbidity currents
glacier scorching
The deep, flat expanses of the ocean are called what?
trenches
abyssal plain
submarine canyons
continental rise
What is the order of the marine provinces from shore to mid-ocean ridge?
shelf, abyssal plain, rise, slope
abyssal plain, shelf, rise, slope
abyssal plain, rise, slope, shelf
shelf, slope, rise, abyssal plain
A seamount whose peak has eroded and become flat is called...
abyssal plain
continental shelf
guyot
continental rise
When were hydrothermal vents discovered?
1976
1977
1967
1981
Black smoke from hydrothermal vents is due to the presence of these elements...
calcium carbonate.
iron, copper, and zinc.
barium and oxygen.
silicon and calcium.
What are some organisms found near hydrothermal vents?
dolphins and whales
lemon sharks and Christmas tree worms
serpulid worms, tubeworms, and mussels
What percentage of all marine species home is coral reefs?
10%
25%
50%
65%
What is the main process used to harness energy for organisms around hydrothermal vents?
Chemosynthesis
Photosynthesis
Where are hydrothermal vents are found mostly around...
mid-ocean ridges and seamounts.
continental shelf.
guyots and abyssal plain.
middle of the ocean.
Hydrothermal vents were first discovered at the...
Hawaiian Islands.
Atlantic Mid-Oceanic Ridge in the Atlantic Ocean.
Mariana Trench.
Galapagos Spreading Center in the Pacific Ocean.
The main body structure of the coral is called...
zooxanthellae.
polyp
medusa
substrate
Bathymetry measures the...
height above sea level.
depth below sea level.
density of the crust.
thickness of the crust.
How does dynamiting damage coral communities?
causing the reef base to crumble
scaring living organisms away
stunning the fish
all of the above
What mainly causes coral bleaching?
warm or lower water temperatures
Muro-ami practices
excess sediments
dynamiting reefs
What are hard or stony coral made out of?
fibrous protein
basalt
calcium carbonate
zooxanthellae algae skeletons
How do organisms get their energy in the deep sea around hydrothermal vents? (Name the process, organisms involved, and the name of the chemical compound)
sun, bacteria, hydrogen sulfide
chemosynthesis, mutualism, chlorine
chemosynthesis, bacteria, hydrogen sulfide
photosynthesis, bacteria, hydroxide
Where are fringing reefs found?
directly offshore
20 miles or more offshore
on the north side of islands
surrounding a sunken island/volcano
Who discovered hydrothermal vents?
Robert (Bob) Ballard
Charles Darwin
Matthew Maury
Mrs. Hodges
Which reefs are separated from the shore by a lagoon or channel?
Fringing Reefs
Barrier Reefs
Atolls
Where are most coral reefs located?
Prime Meridian
Antimeridian
Equator
Tropic of Cancer
Where are Atolls mostly located?
Atlantic Ocean
Pacific Ocean
Indian Ocean
Southern Ocean
Do specialized cell in corals take calcium from seawater?
Yes
No
Maybe
Do corals secrete calcium carbonate which harden to form the reef?
Yes
No
Maybe
What type of symbiotic relationship is there between corals and zooxanthellae?
mutualism, algae provides oxygen (O2) and food to the coral, the coral provides safety and nutrients to the algae.
mutualism, coral provides oxygen (O2) and food to the algae, the algae provides safety and nutrients to the coral.
commenslism, algae provides oxygen (O2) and food to the coral, the coral provides safety and nutrients to the algae.
commensalism, coral provides oxygen (O2) and food to the algae, the algae provides safety and nutrients to the coral.
Name organisms found at the hydrothermal vents (ones we discussed in class):
tubeworms
limpets
vent shrimp
serpulid worms
all of the above
Coral Reefs are being damaged by...
coral bleaching and water pollutants
over fishing and freshwater runoff
muro-ami and ship damage
dynamiting and sediment
All of the above
What is it called when tethered line is tied to rocks and you throw them in the ocean to fish, harming the reefs?
Overfishing
Muro-ami
Dynamiting
Cane fishing
Which of the following is the method used to measure ocean depth over many years?
Dredge Hauls
Echo Sounding
Sound Line
Seismic Profiling
All of the above
