Chapter 15 - Ocean Explorations

Question 1

Small or Wide-Area sampling? Taking biologic samples

Answer 1

Small-area sampling

Question 2

Small or Wide-Area sampling? Mapping the ocean floor using sonar.

Answer 2

Wide-area sampling

Question 3

Small or Wide-Area sampling? Testing water clarity.

Answer 3

Small-area sampling

Question 4

Small or Wide-Area sampling? A satellite tracking warm-water currents.

Answer 4

Wide-area sampling

Question 5

True or False? Most ancient sailors considered the ocean’s surface featureless except for islands.

Answer 5

True

Question 6

True or False? Early explorers took great risks mainly because of a desire to learn more about the oceans.

Answer 6

False

Question 7

True or False? Small-area sampling gives oceanographers the best overall understanding of the oceans.

Answer 7

False

Question 8

What was the first development in underwater technologies?

Answer 8

Diving bell

Question 9

What was the second development in underwater technologies?

Answer 9

Hard-hat diving

Question 10

What was the third development in underwater technologies?

Answer 10

SCUBA

Question 11

What was the fourth development in underwater technologies?

Answer 11

Deep Submergence Vehicle

Question 12

True or False? The risks and expense of manned deep-water exploration must be balanced with the knowledge that will be gained.

Answer 12

True

Question 13

What was a significant motivator for the Age of Exploration?

Answer 13

Trade and accumulation of wealth

Question 14

Who was the first to circumnavigate the world?

Answer 14

Magellan

Question 15

Who was inspired by the Psalms to make accurate wind and current charts, earning himself the nickname “Pathfinder of the Seas”?

Answer 15

Maury

Question 16

The remains of the oldest-known boat were found in ______________.

Answer 16

Kuwait

Question 17

The _______________ expedition covered three oceans and lasted four years.

Answer 17

Challenger

Question 18

A ____________________ collects water at various depths.

Answer 18

Niskin bottle

Question 19

A ______________ measures water clarity.

Answer 19

Secchi disk

Question 20

A ___________________ collects pelagic organisms.

Answer 20

Plankton net

Question 21

A ___________________ collects benthic organisms.

Answer 21

Grab sampler

Question 22

What does a sonar mimic?

Answer 22

A technique used by porpoises and bats.

Question 23

What do modern divers not do to avoid decompression sickness?

Answer 23

They don’t wear special suits.

Question 24

What was constructed by William Beebe and Otis Barton?

Answer 24

Bathysphere

Question 25

What is an early type of deep-sea submersible?

Answer 25

bathyscaphe

Question 26

What is a personal underwater breathing system?

Answer 26

SCUBA

Question 27

What collects and transmits a variety of weather and sea data?

Answer 27

Buoy

Question 28

True or False? A sounding will reveal the water’s temperature.

Answer 28

False

Question 29

True or False? The Trieste was the first vessel to descend into Challenger Deep, the deepest point known in the oceans.

Answer 29

True

Question 30

True or False? An oceanographer may fulfill the Creation Mandate by studying fish life cycles and populations to help sustain fisheries.

Answer 30

True