Oceanography - Quizes Exam 1

Question 1

As this is an online course, the best way to communicate with Dr. D is to:

Answer 1

email him at bdudendorff@polk.edu

Question 2

The required textbook for the course is

Answer 2

Essentials of Oceanography

Question 3

A supply that is needed for exams is

Answer 3

a #2 pencil for the scantrons

Question 4

Quizes count ___ of the grade, HW counts ____ of the grade, Discussions count ____ of the grade, Lab counts ___ of the grade, each Exam counts ___ of the grade, and the final exam counts ___ of the grade.

Answer 4

10%, 7%, 10%, 25%, 12%, & 12%

Question 5

The ____ is the quiz that counts toward your grade

Answer 5

first quiz attempt

Question 6

Answers to the quizzes ___:

Answer 6

will be given by retaking the Quizzes after they ahve been closed, graded,and reopend with the answers available.

Question 7

True or False: All chapters have discussions

Answer 7

false

Question 8

To get full credit on each Discussion, you need to

Answer 8

make at least 2 posts of at least 100 words each (on topic) that are at least 24 hours apart and read the other posts in the discussion

Question 9

The exams can be taken at:

Answer 9

in the lakeland TLCC, in the WH TLCC, at the JD Alexander in Lake Wales, or at any other approved testing center

Question 10

To take the exam at PSC

Answer 10

bring a pencil and a photo ID and arrive at an hour before the testing center closes

Question 11

The earth’s system that is the rigid layers of the solid Earth near the surface is the

Answer 11

Lithosphere

Question 12

Which system or sphere of the earth involves water?

Answer 12

Hydrosphere

Question 13

Which of the following is NOT a form of Solar Energy? 
A. Wind Energy
B. Colo and Oil
C. Water Power
D. Geothermal Energy

Answer 13

D. Geothermal Energy

Question 14

____ Is one of the biggest environmental problems because it influences all other pollution and makes almost all other environmental problems worse.

Answer 14

Population

Question 15

Plan and animals materials are resources that can be replenished quickly. What kind of resources are they?

Answer 15

Renewable Resources

Question 16

___ is due to an manade increase in the greenhouse effect

Answer 16

Global Warming

Question 17

_______ affects plants and bodies of water by changing the pH of water in the air

Answer 17

Acid Rain

Question 18

In science, a well tested and well accepted general explanation is called

Answer 18

a theory

Question 19

_______ uses creativity to put parts together to form something new

Answer 19

synthesis

Question 20

________ uses critical thinking to judge the value of material

Answer 20

Evaluation

Question 21

The Big Bang occurred about __ years ago

Answer 21

13 billion

Question 22

Which of the following is NOT evidence for the Big Bang?
A. the expanding Universe
B. The proportions of hydrogen, helium, and other elements
C. The clockwise rotation of the planets around the sun
D. the microwave background radiation

Answer 22

C. The clockwise rotation of the planets around the sun

Question 23

Our Galaxy, the Milky way, is a ____ Galaxy

Answer 23

spiral galaxy

Question 24

Stars generate most of their energy from

Answer 24

fusion of small ions into larger ions

Question 25

The color of small starts are

Answer 25

red

Question 26

True or False: the largest stars are the coolest stars

Answer 26

False

Question 27

After the largest stop producing energy, the steller remnants that they form are ___

Answer 27

black holes

Question 28

our solar system from from a

Answer 28

nebula

Question 29

As far as it is known, the atmosphere has always contained large amounts of _____

Answer 29

Nitrogen

Question 30

___ is the process of forming life from organic compounds

Answer 30

biogenesis

Question 31

Currents in the Atlantic outside of the Mediterranean are

Answer 31

from North to South

Question 32

The basis of the word ocean from Greek and Latin is

Answer 32

River

Question 33

The library of Alexandria (Egypt) was A. received logs from all ships that visited the port of Alexandria B. was where the diameter of the Earth was first discovered C. one of the greatest libraries of all time D. All the above

Answer 33

D. All the above

Question 34

Latitude measures __________ and longitude measures _____.

Answer 34

position north and south relative to the equator; position east and west relative to Greenwich England

Question 35

True or False: The library at Alexandra is still one of the best libraries in the world; it is the oldest continuously running library in the world

Answer 35

False

Question 36

The Vikings of northern Europe: A. raided other parts of Europe during the dark ages B. Colonized Iceland, Greenland, and briefly North America C. helped lead to the end of the Dark Ages due to the rest of Europe's cooperation in resistance to the raids D. All of the above

Answer 36

D. All of the above

Question 37

True or False: While measuring latitude accurately, using the location of the stars, was possible early on the measurement of longitude accurately, using a seafaring clock, was not possible until 1760

Answer 37

True

Question 38

The Challenger Expedition: A. Lasted from 1872 to 1876 and traveled around the world B. led to the word oceanography C. was the first purely scientific expedition, led by a 6 man scientific staff rather than a captain D. All of the above

Answer 38

D. All of the above

Question 39

The north pole was reached by expedition in ______ and the south pole was reached in ____.

Answer 39

1909; 1911

Question 40

Advances in oceanographic technology include: A. early navigation devices such as the compass, sextant, and seagoing clock B. each sounding (sonar). C. deep drilling ships D. deep diving subs E. Satellites F. All of the above

Answer 40

F. All of the above

Question 41

___________ arrive first at a sesimograph because they are the fastest seismic waves

Answer 41

P waves

Question 42

The ____ is the brittle rock layer at the surface that can move around slowly because it floats on the layer below it

Answer 42

lithosphere

Question 43

The earth's interior stays very hot, rather than cooling faster than it really has, because heat is constantly being added by ___.

Answer 43

Radioactivity

Question 44

Wegener's hypothesis of Continental Drift was

Answer 44

not accepted by other scientists because Wegener could not explain how the continents moved

Question 45

New plate material is created at ___.

Answer 45

Divergent plate boundaries

Question 46

Plates move toward each other at

Answer 46

convergent plate boundaries

Question 47

True or False: Seafloor spreading and magnetic reversals combine to form "magnetic stripes" on the seafloor

Answer 47

True

Question 48

It is possible to test the actual movement of the plate over time, not just that the plates moved, using ____; with this the plate movements can be determined

Answer 48

Polar Wandering

Question 49

The Emporer Seamount and Hawaiian Island chain was made by a _____ so the ages of the seamounts and islands ___.

Answer 49

Hot spot; are youngest at the southeastern end near the big island of Hawaii

Question 50

Plate Tectonics is a _________ and Continental Drift is a _________. Which means, that Plate Tectonics is _____ and Continental drift is ________.

Answer 50

Theory; Discarded Hypothesis; Accepted; Not Accepted

Question 51

There is more ocean area in the _____ hemisphere than on the ____ hemisphere.

Answer 51

Southern, Northern

Question 52

The average depth of the ocean is about ___.

Answer 52

12,500 feet

Question 53

Which part of the continental margin is the least sloped and is an extension of the land?

Answer 53

Continental Shelf

Question 54

The west coast of Florida is a _____ continental margin and the east coast of Florida is a ____ continental margin.

Answer 54

Passive and Passive

Question 55

Which part of the continental margin is the steepest?

Answer 55

Continental Slope

Question 56

________ form when sediment fills in and smooths the rough seafloor

Answer 56

Abyssal plains

Question 57

Volcanic activity due to an oceanic-oceanic convergent plate boundary results in ___

Answer 57

volcanic island arc

Question 58

Trenches are found at ___ plate boundaries

Answer 58

convergent

Question 59

Mid-oceanic ridges are found at ___ plate boundaries

Answer 59

divergent

Question 60

True or False: Divergent plate boundaries, and the rifting and rift valleys that go along with the divergence, are always found in the ocean

Answer 60

False

Question 61

______ sediment comes from life.

Answer 61

Biogenous

Question 62

___ sediment comes form space

Answer 62

Cosmogenous

Question 63

___ sediment comes from land.

Answer 63

Terrigenous

Question 64

______ sediment comes directly from water.

Answer 64

Hydrogenous

Question 65

Dust blown off the deserts by the wind that falls in the oceans is an example of ____ sediment

Answer 65

Terrigenous

Question 66

The chalk cliffs of Dover in England is an example of ___ sediment

Answer 66

Biogenous

Question 67

True or False: The largest column of sediment, often 2 to 3 miles thick, is found on the mid-ocean ridges

Answer 67

False

Question 68

Smaller silt-sized sediment carried by rivers tends to __.

Answer 68

be deposited in the oceans far from the mouth of the river

Question 69

True or False: Calcareous oozes are not found in the deep oceans below the CCD because below that level they dissolve in the water.

Answer 69

True

Question 70

__________ uses sound waves to look with the ocean sediments and the igneous rock below them without actually sampling those sediments and rock

Answer 70

Seismic surveying