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Oceanography: Ocean Deposits & Others

Total questions: 85

Worksheet time: 1hrs 25mins

Name
Class
Date
1.

The deepest part of the ocean; long, narrow ditches

a)

Tectonic plates

b)

Trenches

c)

Divergent boundary

d)

Continental shelves

2.

True or false : Deep-Ocean Trenches are underwater canyons?

a)

False

b)

True

3.

At subduction zones, a deep (a)   forms under the ocean.

4.

When subduction happens, which plate will go under the other plate?

a)

the denser one

b)

the less dense one

c)

the one with magma

d)

the one with mountains

5.

What is the primary geological process occurring at ocean trenches?

a)

Subduction

b)

Sea floor spreading

c)

Volcanism

d)

Erosion

6.

Which ocean trench is the deepest known on Earth?

a)

Mariana Trench

b)

Tonga Trench

c)

Puerto Rico Trench

d)

Java Trench

7.

What type of plate boundary is most commonly associated with ocean trenches?

a)

Convergent

b)

Divergent

c)

Transform

d)

Passive

8.

Which of the following best describes the shape of an ocean trench?

a)

Long, narrow, and deep

b)

Wide and shallow

c)

Circular and deep

d)

Flat and wide

9.

What is a significant consequence of the subduction process at ocean trenches?

a)

Earthquakes

b)

Hurricanes

c)

Tornadoes

d)

Floods

10.

Which scientific instrument is commonly used to measure the depth of ocean trenches?

a)

Sonar

b)

Seismograph

c)

Thermometer

d)

Barometer

11.

Where is the Mariana Trench located?

a)

The north side of China

b)

The Federated States of Micronesia.

c)

The western Pacific east of the Philippines

d)

The Northeastern United States

12.

How do fish in the mariana trench catch their prey?

a)

Light

b)

Biolumenesence

c)

Shallow

d)

No bones.

13.

Why can't people survive going down the mariana trench swimming?

a)

Elephants, oxygen, sunlight.

b)

Hot, no sun, food.

c)

Pressure, darkness, cold temperature.

d)

Your bones would be mush.

14.

Flat, deep, and smooth part of the ocean floor. Cold temperatures are found here.

a)

Continental Shelf

b)

Abyssal Plain

c)

Continental Slope

d)

Seamounts

15.

gently sloping shelf of land extending from the shoreline to the continental edge

a)

Continental Slope

b)

Continental Shelf

c)

Continental Rise

d)

Abyssal Plain

16.

Sharp underwater hill connecting the continent to the ocean floor?

a)

Ocean

b)

Coral Reef

c)

Plankton

d)

Continental Slope

17.

Sand, Mud, and rocks that are found on the ocean floor are called?

a)

Jet Stream

b)

Photosynthesis

c)

Ocean Current

d)

Sediments

18.
Which best represents the order of seafloor features as you move from the shoreline to the deep ocean?
a)
 Continental slope – continental shelf- continental rise – mid-ocean ridge
b)
 Continental rise – continental shelf – mid-ocean ridge -  continental slope
c)
 Continental shelf – continental slope – continental rise – mid-ocean ridge
d)
   Mid-ocean ridge – continental rise – continental shelf- continental slope
19.

What is letter B?

a)

Cont. Shelf

b)

Mid-Ocean Ridge

c)

Volcanic Island

d)

Seamount

20.

What is letter E?

a)

Volcanic Island

b)

Seamount

c)

Mid-Ocean Ridge

d)

Abyssal Plain

21.

What formations happen at ocean to ocean subduction zones?

a)

Deep oceanic trenches

b)

Mountain Ranges

c)

Coastal Volcanic Mountains

d)

Both mountains and volcanoes

22.

Which of the following is formed at Continent- Continent convergent boundaries?

a)

Volcanic Mountains

b)

Earthquakes

c)

Non-volcanic Mountain Ranges

d)

Both volcanoes and earthquakes

23.

The cascade mountain range, where Mt. St Helens is formed, was created because of a ...

a)

Subduction zone

b)

Ocean - continent boundary

c)

crust melted and magma formed volcanic mountain ranges

d)

All of those above

24.

Which is an example of a plate boundary which has formed the Himalayas Mountain Range (home of Mt. Everest!) ?

a)

Ocean- continent convergent boundary

b)

Ocean- Ocean convergent boundary

c)

Continent - continent Convergent boundary

d)

Transform boundary

25.

Sea-floor Spreading is the theory that new sea floor is added at ________________

a)

Mid-ocean trenches

b)

Deep ocean trenches

c)

Continents

26.

What are Mid-Ocean Ridges?

a)

A chain of underwater waterfalls

b)

A chain of underwater volcanos

c)

A deep canyon in the ocean floor

27.
The OLDEST seafloor is located? 
a)
Closest to the mid-ocean ridge
b)
Farthest from the mid-ocean ridge
28.
True or false : Deep-Ocean Trenches are underwater canyons?
a)
False
b)
True
29.

What is one piece of evidence of seafloor spreading?

a)

scientist found animals at the bottom of the sea

b)

expanding continents

c)

scientist found pillow shaped rocks (made from lava)

30.

Another piece of evidence for sea-floor spreading is the age of rocks. Choose the true statement about this evidence below:

a)

The age of the oceanic crust gets older the further you go from a mid-ocean ridge.

b)

The age of the oceanic crust gets younger the further you go from a mid-ocean ridge.

c)

The age of the oceanic crust is the exactly the same no matter where you go.

31.

Magnetic stripes in the oceanic crust are another piece of evidence that prove the ocean floor....

a)

Was made at the same time

b)

Has different ages throughout the floor (newer crust next to MOR)

c)

Changes the magnetic poles of the earth

32.
The oceanic crust is pushed aside on both sides of the 
a)
Continent's edge
b)
Deep-ocean trench
c)
Mid-ocean ridge
33.

The oceanic crust _________ when it reaches the continental crust.

a)

subducts (sinks)

b)

rises

c)

expands

34.
New crust is always formed at the...
a)
mid-ocean ridge
b)
deep-ocean trench
c)
asthenosphere
35.
If there are MORE mid-ocean ridges than subduction zones, what happens to the ocean?
a)
It gets larger
b)
It gets smaller
c)
It sinks
36.
The deepest part of the ocean; long, narrow ditches
a)
Tectonic plates
b)
Trenches
c)
Divergent boundary
d)
Continental shelves
37.

___________ help explain why Earth is not getting any larger even though new oceanic crust is being added from mid-ocean ridges.

a)

earthquakes

b)

subduction zones

c)

fossils

d)

volcanoes

38.

What happens when Subduction occurs?

a)

Parts of the crust fall into the mantle at deep-ocean trench

b)

Parts of the crust fall into the mantle at a mid-ocean ridge

c)

Parts of the crust fall into space

39.

How does sea floor spreading help prove continental drift?

a)

It explains HOW the supercontinent of Pangea formed

b)

It explains HOW the continents broke apart, due to the ocean floor pushed apart at a MOR (mid-ocean ridge)

c)

It explains WHY the seafloor is shrinking & pulling the continent into deep ocean trenches

40.

Why did no one believe Alfred Wegener when he claimed that there was a supercontinent - even though he had evidence such as coastlines fitting together & fossils?

a)

He was not a scientist

b)

He was one weird dude

c)

He had nothing to support that they once fit together

d)

He could not explain HOW the continents moved

41.

Sea-floor Spreading is the theory that new sea floor is added at ________________

a)

Mid-ocean trenches

b)

Deep ocean trenches

c)

Continents

42.

What are Mid-Ocean Ridges?

a)

A chain of underwater waterfalls

b)

A chain of underwater volcanos

c)

A deep canyon in the ocean floor

43.

What is one piece of evidence of seafloor spreading?

a)

scientist found animals at the bottom of the sea

b)

expanding continents

c)

scientist found pillow shaped rocks (made from lava)

44.

Another piece of evidence for sea-floor spreading is the age of rocks. Choose the true statement about this evidence below:

a)

The age of the oceanic crust gets older the further you go from a mid-ocean ridge.

b)

The age of the oceanic crust gets younger the further you go from a mid-ocean ridge.

c)

The age of the oceanic crust is the exactly the same no matter where you go.

45.

Magnetic stripes in the oceanic crust are another piece of evidence that prove the ocean floor....

a)

Was made at the same time

b)

Has different ages throughout the floor (newer crust next to MOR)

c)

Changes the magnetic poles of the earth

46.
Differences in the moon's and sun's pull on different sides of the Earth cause _________.
a)
gravity
b)
lunar phases
c)
tides
d)
dabbing
47.
The bulge of water on the side of the Earth closest to the moon produces ___________.
a)
high tide
b)
low tide
c)
neap tide
d)
spring tide
48.
Which body has the greater effect on Earth's tides?
a)
Sun
b)
Saturn
c)
Moon 
d)
Venus
49.
Warm ocean currents generally come from
a)
The North Pole
b)
The South Pole
c)
The Equator
d)
Both A and B
50.
Cold ocean currents generally come from
a)
The North Pole 
b)
The South Pole
c)
The Equator
d)
Both A and B
51.
A result of upwelling is a/an _________ in nutrients in the water.
a)
Decrease
b)
Increase
c)
No Change
52.
The nutrients in the water help tiny plants called ______________  to grow. 
a)
algae
b)
kelp
c)
plankton
53.
Pelagic deposits form
a)
in deep ocean basins.
b)
on the continental shelf.
c)
on the continental slope.
d)
in warm shallow water.
54.
Beach deposits are an example of
a)
hydrogenous sediment.
b)
cosmogenous sediment.
c)
biogenous sediment.
d)
lithogenous sediment.
55.
Which of the following organisms produce calcium carbonate shells (tests)?
a)
Coccolithophores and radiolarians
b)
Radiolarians and diatoms
c)
Coccolithophores and foraminifers
d)
Foraminiers and diatoms
56.
Evaporites are examples of
a)
lithogenous sediments.
b)
hydrogenous sediments.
c)
biogenous sediments.
d)
cosmogenous sediments.
57.
In which environment do neritic deposits not form?
a)
Close to the shore.
b)
In deep ocean basins.
c)
On the continental shelf.
d)
On the continental slope.
58.
Manganese nodules belong to
a)
lithogenous sediments.
b)
biogenous sediments.
c)
hydrogenous sediments.
d)
cosmologeous sediments.
59.
What process creates lithogenous sediments?
a)
Precipitation from seawater
b)
Weathering and erosion
c)
Dissolution of carbonate shells
d)
Evaporation
60.
On the whole, what is the most important mechanism of transporting continental lithogenous sediments to the ocean?
a)
Wind
b)
Flowing water
c)
Glaciers and icebergs
d)
Gravity (mass flows)
61.
Beach deposits are an example of
a)
hydrogenous sediment.
b)
cosmogenous sediment.
c)
biogenous sediment.
d)
lithogenous sediment.
62.
What is the largest particle in sediment?
a)
Gravel
b)
Sand
c)
Clay
d)
Silt
63.
Put the sediments in order from smallest sized particles to largest
a)
clay, silt, sand, gravel
b)
silt, clay, gravel, sand
c)
gravel, sand, silt, clay
64.
This is the largest intact meteorite. If it was broken down into sediment, what kind would it be?
a)
Lithogenous 
b)
Biogenous 
c)
Hydrogenous
d)
Cosmogenous
65.
if more than 30% of an area's sediment is made up of biogenous particles, it is called a(n)
a)
ooze
b)
slush
c)
mud
d)
silt
66.

Which means the same as lithogenous?

a)

biogenous

b)

authigenous

c)

terrigenous

d)

cosmogenous

67.

Most neritic sediments are ___________: they are eroded from the land and carried to streams, where they are transported to the ocean.

a)

terrigenous

b)

biogenous

c)

hydrogenous

d)

cosmogenous

68.

This type of sediment is the most abundant. They originate on the continents or islands from erosion, volcanic eruptions, and blown dust.

a)

terrigenous

b)

biogenous

c)

hydrogenous

d)

cosmogenous

69.

Radiolarians and diatoms (both microorganisms with silicon based shells) are both examples of

a)

sources of siliceous oozes

b)

near large animals

c)

sources of calcerous oozes

d)

only found on land

70.

Foraminifera (calcium based) shells are likely to be deposited and form

a)

calcerous ooze

b)

silaceous ooze

c)

heavy metal deposits

d)

uranium deposits

71.

What is the effect of El Niño on coastal upwelling?

a)

Coastal upwelling strengthens, leading to increased fish populations

b)

Coastal upwelling weakens, leading to reduced fish populations

c)

Coastal upwelling remains unaffected by El Niño

d)

Coastal upwelling stops completely during El Niño

72.

Which marine environment is the transition between land and ocean?

a)

Intertidal zone

b)

Benthic environment

c)

Pelagic environment

d)

Neritic zone

73.

What is the largest marine environment?

a)

Intertidal zone

b)

Benthic environment

c)

Neritic province

d)

Oceanic province

74.

Which ocean zone is known for having the most biodiversity?

a)

Abyssal zone

b)

Intertidal zone

c)

Neritic zone

d)

Oceanic zone

75.

What is the main reason for the ocean's blue color?

a)

Reflection of the sky

b)

Absorption and scattering of sunlight

c)

Presence of algae

d)

Depth of the ocean

76.

which of the Indian Island lies between India and Srilanka

a)

Elephanta

b)

Nicobar

c)

Rameshawaram

d)

Salsette

77.

McMohan line is an international boundary between

a)

India and Myanmar

b)

India and Pakistan

c)

India and China

d)

India and Bangladesh

78.

Which 5 country boundaries meet at Indira Col

a)

India, Pakistan, Afghanistan, Nepal, Burma

b)

India, Pakistan, Uzbekistan, Nepal, Burma

c)

India, Pakistan, Afghanistan, China, Tajikistan

d)

India, Pakistan, Bhutan, Nepal, China

79.

Which one of the following is a trans himalayan river or Antecedent river

a)

Sutlej

b)

Ganga

c)

Yamuna

d)

Ghaghara

80.

Jog Falls is formed by which river

a)

Tapti

b)

Netravati

c)

Saravati

d)

Ravivati

81.

The largest Fresh water lake in India is

a)

Kolleru

b)

Wular

c)

Pangong Tso

d)

Tso Morari

82.
Fuels such as ________________ are created naturally over the course of hundreds of millions of years from the remains of dead marine organisms.
a)
coal
b)
nuclear material
c)
oil and natural gas
d)
wood
83.
Metals on the ocean floor can concentrate around pieces of shell, forming black lumps called _____________.
a)
coal
b)
nodules
c)
tar balls
d)
pollution
84.
Fresh water can be produced by removing the salt from ocean water using a process called ______________.
a)
salt water cleanup
b)
desalination
c)
water purification
d)
wastewater treatment
85.

Which of the following is a nonrenewable resource extracted from the ocean?

a)

Seaweed

b)

Fish

c)

Crude oil

d)

Ocean currents

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