The length of daylight gets progressively longer going south from the equator on:
A) September 22. B) March 21. C) December 21. D) June 21.
D
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Most Atlantic tropical cyclones have their origin in
A) the Caribbean. B) northwest Africa. C) the Gulf of Mexico. D) the middle of the Atlantic Ocean.
The sediments that make up the Ganges river delta in India are often toxic because they
A. Are highly acidic due to acid rain B. Run through toxic soils C. Dissolve naturally-occurring sulfur dioxide D. Originate in coastal industrial areas E. Have concentrations of naturally occurring arsenic
What tool is often used to measure the topography of the seafloor today?
A) High-resolution multibeam instruments B) Sonar C) Echo sounders D) Radar altimeters
What is the material deposited by a stream, which is often sorted and layered?
A. ephemeral B. sediment C. bedload D. stream load E. alluvium