Why are the largest volcanoes on Earth so much smaller than the largest ones on Mars?
What will be an ideal response?
Plate tectonic processes on Earth keep things moving around, so a mantle plume creates a volcanic chain such as the Hawaiian Islands. Plate tectonics on Mars is absent, however, so successive eruptions accumulate in the same location, creating very large volcanic structures.
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Which of the following would be most useful in investigating groundwater contamination?
A. records of how much material the company may have spilled B. a map showing contours of the water table and of contamination levels C. a geologic map D. records of health problems, like leukemia, of people living in the area
Salt water may contribute to rapid erosion, and thereby, result in breakup of rocky cliffs through chemical reaction with the rocks.
Answer the following statement true (T) or false (F)
What percent of Russia's farmland had been privatized by 2003?
A) 25% B) 10% C) 50% D) 90% E) 5%
The finer rock fragments are, the more subject they are to chemical weathering, because finer fragments have a higher surface-to-volume ratio.
Answer the following statement true (T) or false (F)