Which of the following is true about igneous processes along oceanic divergent boundaries as shown in this figure?
A. Most of the mantle is molten, not solid.
B. Magma generated in the crust drips down into the mantle.
C. Oceanic crust moves toward the ridge in a conveyor-belt manner.
D. Solid asthenosphere rises as plates move apart.
Answer: D
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A city park and a freshwater lake are examples of ____________________ that are vulnerable to non-native species and pollution.
Fill in the blank(s) with the appropriate word(s).
Where are abyssal plains most common?
a. Atlantic Ocean b. Indian Ocean c. Southern Ocean d. Pacific Ocean e. Arctic Ocean
Besides geographic fit of continents, what other evidence did Alfred Wegener study to support his theory of continental drift?
A) ?Coal and fossilized remains of tropical plants are absent in frigid Antarctica. B) ?Differences in fossils are found across separated continents. C) ?Ice core samples indicate similar CO2 measurements at both poles. D) ?The alignment of mountain ranges has a similar age, composition, and structure on both sides of the Atlantic.
Trees cannot survive in polar climates
a. True b. False Indicate whether the statement is true or false