When electromagnetic waves from the Sun reach the human eye, they stimulate antenna-like nerve endings in the ____
a. ?iris
b. ?retina
c. ?pupil
d. ?cornea
e. ?sclera
ANSWER: b
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As entropy increases in a system, energy within the system
A. becomes less ordered. B. reaches equilibrium. C. becomes more ordered. D. moves toward destruction.
If current energy consumption trends continue and the per capita income of the world increased dramatically, we would expect that
A) global climate change will be a greater problem. B) literacy levels will decrease. C) respiratory diseases in cities will increase. D) land and labor will no longer be economic factors.
In general, loam soils are best suited to support vegetation growth
a. True b. False Indicate whether the statement is true or false
To the north of the continent is the __________, geologically the oldest part of North America, and a sparsely populated area with poor soils.
-Appalachian Highland -Arctic -none of these is correct -Canadian tundra -Canadian Shield