Earthscience #2 Exam Question

Front 1

List the two major regions of the ocean floor.

Back 1

Continental margin and deep-ocean basin

Front 2

Describe the subdivisions of the continental margin.

Back 2

The continental shelf is a gently sloping section located between the shoreline and the continental slope. The continental slope is the steeply inclined section of the continental margin. The continental rise is the gently sloping section located between the continental slope the abyssal plane.

Front 3

List three technologies for studying the ocean floor, and explain how they are used.

Back 3

Sonar, Geosat, and underwater vessels; sonar is used to determine the ocean’s depth by sending sound pulses from a ship down into the ocean. Geosat is a satellite that is used to measure the ditterent heights of the ocean’s surface , which can help detect mountains and trenches on the ocean’ floor. Underwater vessels (both piloted and rovotic) are used.

Front 4

List an underwater missions that Alvin has been used for.

Back 4

Searches for sunken ships, the recovery of a lost hydrogen bomb, and exploration of the sea floor.

Front 5

Explain how Jason II and Medea are used to explore the ocean.

Back 5

Jason II is flown by a plot at the surface and is used to explore the ocean floor. Medea is attached to Jason II with a tether and explores above the sea floor.

Front 6

Describe how a bathymetric profile is made.

Back 6

Scientist use sonar single to make a bathymetric protile.

Front 7

Is the ocean floor a flat surface? Explain your answer.

Back 7

Exploring the ocean is similar to exploring space because it can be dangerous to explore both and much is still unknown about the ocean and about space.

Front 8

Sonar is a technology based on the

Back 8

Echo-ranging behavior of bats

Front 9

The top layer of ocean water that extends to 300 m below sea level is called?

Back 9

Surface zone

Front 10

Explain how Earth’s first oceans formed?

Back 10

The Earth cooled enough for water vaper to condense and fall as rain. The volcanic gases made water vaper.

Front 11

Why is the ocean an important part of the water cycle?

Back 11

The ocean is an important part of the water cycle because nearly all of earth’s water is found in the ocean.

Front 12

Between which two steps of the water cycle does the ocean fit?

Back 12

Precipitation; Evaporation

Front 13

Describe how the ocean plays a role in stabilizing Earth’s weather conditions.

Back 13

The ocean helps to stabilize Earth’s weather conditions because the ocean absorbs and stores energy from sunlight. This function regulates temperatures in the atmosphere.

Front 14

Shallowest zone of the benthic environment

Back 14

intertidal zone

Front 15

Zone between the continental shelf and the abyssal plain

Back 15

bathyal zone

Front 16

Largest ecological zone of the ocean

Back 16

oceanic zone

Front 17

Deepest benthic zone

Back 17

hadal zone

Front 18

Zone that covers the continental shelf

Back 18

neritic zone

Front 19

Zone covering the entire ocean floor past the continental shelf

Back 19

abyssal zone

Front 20

Which of the following statements describes plankton?

Back 20

Most are microscopic

Front 21

Which of the following statements describes nekton?

Back 21

They swim actively in the open ocean

Front 22

Which of the following statements describes benthos?

Back 22

They swim actively in the open ocean

Front 23

Marine organisms are grouped by

Back 23

Where they live and how they move

Front 24

What items do you think you would need in a disaster kit? Explain.

Back 24

Batters, flashlight, water medicine , canned food, matches, candles, first ad kit, camera

Front 25

What happens to a hurricane as it moves over land? Explain.

Back 25

When a hurricane moves over land, it begins to lose energy because there is less warm, moist air over land.