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| 1 | |
In a crystal, molecules are arranged in regular patterns. |
| | A) | True |
| | B) | False |
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| 2 | |
Since seawater becomes more dense as it cools, frozen seawater sinks to the ocean floor. |
| | A) | True |
| | B) | False |
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| 3 | |
In boiling water, nearly all of the hydrogen bonds are broken. |
| | A) | True |
| | B) | False |
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| 4 | |
Hydrogenbonds form when two hydrogens on different water molecules join together. |
| | A) | True |
| | B) | False |
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| 5 | |
In general, negative ions tend to enter the oceans via volcanoes and hydrothermal vents, while positive ions tend to enter from weathering of rocks. |
| | A) | True |
| | B) | False |
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| 6 | |
There should be less oxygen in tropical waters than in polar seas. |
| | A) | True |
| | B) | False |
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| 7 | |
Water absorbs light of red wavelengths best. |
| | A) | True |
| | B) | False |
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| 8 | |
Trade winds in the Northern Hemisphere result from air sinking at about 30° N latitude, traveling back toward the equator, and moving westward relative to the ground due to the Coriolis effect. |
| | A) | True |
| | B) | False |
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| 9 | |
The Coriolis effect results from the fact that the earth's surface rotates more rapidly at the equator than at the poles. |
| | A) | True |
| | B) | False |
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| 10 | |
The Westerlies blow eastward because they arise from air masses moving from a region of the globe spinning more slowly to a region spinning more rapdily. |
| | A) | True |
| | B) | False |
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| 11 | |
The major ocean currents, called gyres, are caused mainly by the trade winds and westerlies moving the ocean water at an angle due to the Coriolis effect. |
| | A) | True |
| | B) | False |
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| 12 | |
A floating object dropped off the east coast of Florida would more likely reach Europe before reaching Cuba. |
| | A) | True |
| | B) | False |
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| 13 | |
Due to the gyre currents, surface waters are usually warmer on the east sides of oceans. |
| | A) | True |
| | B) | False |
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| 14 | |
The longer the fetch is, the greater the mass of water that is transported by waves. |
| | A) | True |
| | B) | False |
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| 15 | |
Waves begin to break and create surf when the wave energy begins to run into the seafloor. |
| | A) | True |
| | B) | False |
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| 16 | |
In a normal semidiurnal tide lunar cycle, the time between a high tide and the next low tide is 6 hrs. 12 min. |
| | A) | True |
| | B) | False |
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| 17 | |
The greatest differences between high and low tides occur when the sun and moon are at right angles to each other. |
| | A) | True |
| | B) | False |
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| 18 | |
The tidal bulge that occurs on the earth's side opposite the moon is due to the centrifugal force of the earth rotating about a common earth-moon center of mass. |
| | A) | True |
| | B) | False |
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| 19 | |
Because of the patterns of plate tectonic movements, there should be more tsunamis in the Pacific than in the Atlantic. |
| | A) | True |
| | B) | False |
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| 20 | |
Below the main thermocline of the "three-layered ocean," there is no oxygen because there is neither photosynthesis nor a mechanism to transport oxygen to the depths. |
| | A) | True |
| | B) | False |
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| 21 | |
Overturn usually occurs in the winters when an increase in water density is caused by cooling. |
| | A) | True |
| | B) | False |
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| 22 | |
In summer, the surface layer of the "three-layered ocean" may develop a thermocline, a sharp transition between upper warm and deeper cold waters. |
| | A) | True |
| | B) | False |
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| 23 | |
Among the major ions of seawater that follow the "rule of constant proportionality" is |
| | A) | Na+. |
| | B) | Cl-. |
| | C) | Mg++. |
| | D) | all of the above |
| | E) | both a and b above |
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