Which of the following is a uniquely human trait?
A) Ability to regulate our reproduction
B) Long term parental care of offspring
C) Communication between members of a species
D) Storage of food during cold or dry periods
A
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The sky is blue because:
A) blue light is reflected off the world's oceans into the atmosphere. B) blue light is not easily absorbed by the atmosphere. C) air molecules scatter blue light more readily than other colors of visible light. D) blue light is not easily scattered by the atmosphere.
The calcium carbonate in the B horizon indicates this is a(n)
A) Inceptisol.
B) Alfisol.
C) Aridisol.
D) Gelisol.
E) Mollisol.
Altostratus clouds:
A) scatter a substantial portion of sunlight back into space. B) allow enough light through to throw sharp shadows on the ground. C) form halos around the Sun and the Moon. D) form a series of rows of puffy clouds.
The cloud form that is best described as sheets or layers that cover much or all of the sky is termed ________
A) alto B) stratus C) cirrus D) cumulus