What information did NASA's Earth-observing satellite, AQUA, collect to learn about Earth's water cycle?
A) ?amount of phytoplankton and dissolved organic matter in the oceans
B) ?samples of seafloor sediments
C) ?changes in sea surface elevation
D) ?ocean floor topography
A
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Permanently frozen subsoil characterizes
A) coniferous forests. B) tundra. C) temperate grasslands. D) chaparral.
Angular momentum depends upon
A) a body's mass. B) a body's distance from the axis of rotation. C) a body's rotation velocity. D) all of the above E) none of the above
What type of political division (subject) within Russia has a degree of self-governance?
a. Commonwealth of Independent States b. Autonomies c. Crimeans d. Unions e. Localities
Individuals of a single species fighting over access to a limiting resource would be an example of ________
A) interspecific competition B) symbiosis C) resource partitioning D) intraspecific competition E) competitive exclusion