Clouds in sunshine look white because
A) light of all colors is multiple scattered within the cloud.
B) they contain white pigments.
C) they have a low index of refraction.
D) they are contrasted against blue sky.
E) they are not able to absorb the specific frequency of white light.
A
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What is the most important physical environmental factor in intertidal communities?
a. temperature b. salinity c. density d. pressure e. rise and fall of tides
A decline of the productive potential of soil, especially on arid or semiarid land, by 10% or more because of prolonged drought and human activities is called ____.
A. salinization B. desertification C. soil erosion D. overgrazing E. waterlogging
The solid rock from which regolith and soil develop is
A) bedrock. B) parent material. C) outcrop. D) angle of repose. E) joints.
Which name is given to a large cyclonic storm system that forms in the middle latitudes?
a. middle latitude cyclone b. tornado c. taifoon d. anticyclone e. thunderstorm