A wavelength is determined by the:
a. horizontal distance between two wave crests
b. height between two successive wave crests.
c. time between two successive wave crests.
d. height between the wave crest and wave trough.
a
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The greatest percentage of all mammals are marsupials. Indicate whether the statement is true or false
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What are biofuels, and what are their impacts on food production?
What will be an ideal response?