Waves in the surf zone begin to behave like shallow-water waves when ________
A) distance from shore < wavelength
B) steepness = 1:7
C) water depth = wave height
D) water depth = wavelength/20
E) wavelength < wave height
D
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Zooxanthellae are ________.
A. used in the treatment of wastewater B. symbiotic algae that provide energy to many species of corals C. an invasive kelp species in the Indian Ocean D. bacteria that fix nitrogen in ocean sediments
Which of the following is true of polyatomic ions?
A) All are anions. B) All are cations. C) The vast majority are anions. D) The vast majority are cations.
The island of Honshu is an example of a volcanic island associated with volcanic activity at a ________
A) hotspot B) island arc C) mid-ocean ridge D) transform fault E) rift valley
Changing beak length in great tits in the UK has been linked to which of the following?
What will be an ideal response?