What features on the ocean floor most resemble basalt plateaus on the continents?
What will be an ideal response?
Oceanic plateaus.
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What is the connection between the amount of silica in a melt and how viscous it is?
A) Silica forms strong bonds, so higher amounts of silica make for more viscous magma. B) Higher silica content lowers the melting temperature and since increasing the temperature of a magma decreases viscosity increasing silica content increases viscosity. C) Higher silica content means a larger amount of water a magma can dissolve and water decreases magma viscosity, so increasing silica conte
Determine the latitude of the tangent rays of the Sun in the Northern Hemisphere on the following days of the year, then indicate if latitudes north of the tangent rays in the Northern Hemisphere are receiving 24 hours of daylight or 24 hours of darkness. Remember, the tangent rays and circle of illumination will be the same number of degrees of latitude away from the North Pole as the declination of the Sun is from the equator. If the declination of the Sun is north of the equator, it is the high-Sun season (“summer”) in the Northern Hemisphere; if the declination of the Sun is south of the equator, it is the low-Sun season (“winter”).
What will be an ideal response?
Winds along the trough axis are [INSERT FIGURE 4-22B. REMOVE TEXT "SLOWER THAN GEOSTROPHIC". NO CAPTION]
A) slower than geostrophic because a decreased Coriolis force is required to turn the winds to the left B) slower than geostrophic because an increased Coriolis force is required to turn the winds to the left C) faster than geostrophic because a decreased Coriolis force is required to turn the winds to the left D) faster than geostrophic because an increased Coriolis force is required to turn the winds to the left
Which group consumes one-fifth of the world's energy, while only making up one-twentieth of Earth's population?
A) Americans B) Chinese C) Indians D) Europeans E) Russians