Photoreceptors in the retina of our eyes, called rods and ____, are sensitive to the value and intensity of colors.

A. tints
B. prisms
C. chromas
D. cones


Answer: D

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The parade pattern on an oscilloscope displays cylinder patterns from right to left.

Answer the following statement true (T) or false (F)

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The composition of an insulating material is such that its solid constituents trap air (or gas) in extremely small volumes. Why does the entrapment of large volumes of air (or gas) reduce the insulating property of the material?

What will be an ideal response?

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The word ____ is the name for a material composed of two or more different elements combined.

a. compound b. molecule c. atom d. chemical

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Label the following furnace.

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