Earth intercepts approximately ________ of the Sun's total energy output
A) 1/100,000
B) 1/150,000,000
C) 1/400,000
D) 1/4
E) 1/2,000,000,000
E
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Of central importance in a tug-of-way match is
A. increased tension in the rope. B. friction between the feet and ground. C. one's grip on the rope. D. staying power.
Placental mammals give birth to live young that must undergo development in a protective
pouch. Indicate whether the statement is true or false.
The stability of an air layer refers to its:
A) tendency to either sustain or suppress upward vertical motions. B) pressure as measured at its base. C) albedo. D) overall density.
Antecedent streams can flow through a mountain range because _____
a. extreme flow velocities allowed them to flow over the top of the mountains b. bedrock solution gradually opens a tunnel through the mountains that collapses c. headward erosion connects two streams on opposite sides of the mountains d. the gap in the mountains existed before the stream flowed through it e. the stream existed before the establishment of the mountains