Igneous rocks with an andesitic composition ________
A) are found primarily in continental interiors B) are denser than granitic compositional rocks
C) make up most of the sea floor D) are denser than basaltic compositional rocks
B
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The diagram below conveys the idea that
A) oceanic subduction zones are areas where ecosystems are particularly rich.
B) biogeochemical cycles store and cycle matter across the different spheres.
C) diversity is only one indicator of an ecosystem's health.
D) life tends to exist in clumps with little between the productive areas.
Air pollutants can take the form of
A) gasses. B) particulates. C) liquids. D) all the above
Matter is best described as
a. anything that has mass and occupies space b. something that has the capacity to do work c. something that can exist as a solid, liquid, or gas d. something that can produce change e. is anything that has mass and occupies space and can exist as a solid, liquid, or gas
Analysis of Southern Oscillation Index (SOI) trends indicates
A) La Nina episodes are becoming more common. B) El Nino episodes are becoming more common. C) the frequency of La Nina and El Nino is equal. D) none of the above.