In what ways are geysers and undersea hydrothermal vent sites similar? What will be an ideal response?
Both are powered by water that enters a system of faults and joints from the surface, and then descends
to a level where it is superheated under pressure by the surrounding hot rock lying close to a shallow
magma chamber.
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Explain briefly how global warming negatively impacts coral reefs
What will be an ideal response
What was the astronomer Eratosthenes responsible for?
A) calculating that a rotating planet would not be perfectly spherical B) determining the mass of Earth C) determining that the Earth has a distinct concentration of high-density material near the center D) using simple surveying and measurements of shadows in sunlight to estimate Earth's size
In our natural atmosphere,
A) there is very little hydrogen in any form. B) hydrogen is most abundant combined with oxygen as water vapor and other compounds. C) hydrogen is most abundant combined with carbon. D) hydrogen gas is more abundant than carbon dioxide.
Most of the water in the hydrosphere is found in
A. aquifers. B. the oceans. C. the atmosphere. D. the polar ice caps.