For blue Suns to appear, the size of the suspended particles must be ____

a. shorter than infrared wavelengths
b. similar to ultraviolet wavelengths
c. shorter than the primary wavelengths of visible light
d. similar to the primary wavelengths of visible light
e. similar to the primary wavelengths of visible light


ANSWER: d

Environmental & Atmospheric Sciences

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Which of the following are ways that individuals can support sustainable agriculture through their choices and behaviors?

a. waste less food b. eat locally grown food and meat c. waste less food and compost food wastes d. waste less food, eat less meat, compost food wastes and eat locally grown food e. use a drip system for watering in your own garden

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________ systems are characterized by hot water circulation

Fill in the blank(s) with correct word

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The tiniest channels are called ____________________

Fill in the blank(s) with correct word

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The Challenger Expedition circumnavigated the world.

a. true b. false

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