Which of these is most important for splitting the Sun's light into its separate colors?
A) diffraction
B) interference
C) internal reflection
D) reflection
E) refraction
E
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The universe is presently contracting. Indicate whether the statement is true or false
What is the current status of earthquake prediction according to the U.S. Geological Survey? What will be an ideal response?
A glacial landform produced primarily by plucking rocks on the downstream side and smoothing by the glacier on the upstream side is called a(n) ____
A)roche moutonée B)esker C)kame D)terminal moraine E)cirque
Which of the following is NOT a government policy to improve the financial position of U.S. farmers?
A) U.S. Public Law 480 B) encouragement to avoid production of crops in excess supply C) government financing with commodity prices are low D) government purchase of surplus production E) encouragement of planting fallow crops