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8.E.1.2 Oceans

Total questions: 25

Worksheet time: 50mins

Name
Class
Date
1.
The process of upwelling occurs as a result of
a)
warm, less-dense deep water that floats to the surface.
b)
cool, dense surface water that sinks and pushes deep water up.
c)
surface waves that mix surface and deep water
d)
sunlight that warms deep water that rises to the surface.
2.
In which ocean zone is the greatest number of producers found?
a)
deep zone
b)
intertidal zone
c)
open zone
open zone
d)
oceanic
3.

Much of Earths weather is driven by _______ stored in the ocean.

a)

Salt

b)

Water

c)

Heat

d)

Fish

4.

Areas where salt and fresh water mix are known as

a)

Oceans

b)

Estuaries

c)

Aquifers

d)

Intertidal zone

5.

Estuaries are not generally areas where a lot of wildlife can be found.

a)

True

b)

False

6.

What is brackish water

a)

Dirty water

b)

Clear Water

c)

Slightly salty water

d)

Ground water

7.

The most abundant plants in the ocean are

a)

Zooplankton

b)

Phytoplankton

c)

Algae

d)

None of these

8.

Areas where cold, nutrient rich waters are brought to the surface due to winds blowing offshore are known as_________

a)

Aquifers

b)

Benthos

c)

Upwellings

d)

Hydrothermal Vents

9.

Upwellings are areas of rich biological diverstiy

a)

True

b)

False

10.

The ocean plays a critical role in removing carbon from the atmosphere

a)

True

b)

False

11.

Hydrothermal vents are driven by _______ from beneath the sea floor.

a)

Motion

b)

Heat

c)

Friction

d)

Light

12.

A technology used for underwater mapping is called

a)

Laser

b)

Radar

c)

Sonar

d)

Lidar

13.

All life in the ocean rely on sunlight for energy

a)

True

b)

False

14.
Definition of wetland
a)
an area where a river flows into the ocean (fresh and salt water mix)
b)
land that has a wet and spongy soil, as a marsh, swamp, or bog
c)
Water that is slightly salty.
d)
a process in which deep, cold water rises toward the surface
15.
Definition of upwelling
a)
Wide variety of plants and animals live in an estuary.
b)
The measure of how salty water is
c)
a process in which deep, cold water rises toward the surface
d)
The speed at which water flows
16.
Definition of brackish
a)
Water that is slightly salty.
b)
An area of land drained by a river and its branches (streams and creeks).
c)
The measure of how salty water is
d)
Wide variety of plants and animals live in an estuary
17.
Definition of estuary
a)
Wide variety of plants and animals live in an estuary.
b)
An area of land drained by a river and its branches (streams and creeks).
c)
a process in which deep, cold water rises toward the surface
d)
an area where a river flows into the ocean (fresh and salt water mix)
18.
Definition of salinity
a)
The measure of how salty water is
b)
The speed at which water flows.
c)
Water that is slightly salty.
d)
a process in which deep, cold water rises toward the surface
19.
the area of the shore and seabed that is exposed to the air at low tide and submerged at high tide, i.e. the area between tide marks
a)
neritic zone
b)
intertidal zone
c)
photic zone
d)
upwelling
20.

A ship is mapping the structure of the ocean floor using sonar technology. Which describes the basic method used in this type of mapping?

a)

A radio wave is sent from the ship and reflects off the ocean floor back to a receiver on the ship.

b)

A sound wave is sent from the ship and reflects off the ocean floor back to a receiver on the ship.

c)

A radio wave is sent by the ship and is absorbed by the ocean floor.

d)

A sound wave is sent by the ship and is absorbed by the ocean floor.

21.

Why is upwelling an important process in a marine ecosystem?

a)

Upwelling replaces sand and gravel on beaches lost as the result of wave and tidal action.

b)

Upwelling decreases the temperature differences between different layers of ocean water.

c)

Upwelling cycles nutrients from decomposers along the ocean floor to producers in surface waters.

d)

Upwelling returns salt to the surface from the benthic zone as part of the global conveyor belt current.

22.

Deep ocean bottoms are generally cold, dark, and lifeless. However, some organisms have been discovered existing near thermal vents on the ocean floor. What makes these organisms different from MOST other organisms in the way that they obtain energy?

a)

They do not use oxygen.

b)

They can live near hot water.

c)

They can tolerate high pressure.

d)

They do not use sunlight.

23.
An underwater vehicle.
a)
submersible
b)
car
c)
van
d)
truck
24.
The weight of the water pressing on an object.
a)
jetty
b)
water pressure
c)
desaliniation
25.
Produces most of our Earth's Oxygen
a)
trees
b)
grass
c)
phytoplankton

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