In an electric circuit, a battery supplies
A. energy to electrons.
B. a flow of electric charge.
C. electrons.
D. voltage to electrons.
Answer: A
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Complete the following nuclear equation:
Tl ? 
Pb + ??
A. 
e
B. gamma ray
C. 
He
D. both A and B
E. none of the above
Which of the following was mentioned in the opening two-page spread of Chapter 9 (Sculpting Landscapes)?
A. unusual shapes into which rocks are eroded B. movement of material downhill on slopes C. natural arches D. canyons of the Colorado River and Green River E. All of these were mentioned.
Which of the following is not one of the pluvial developments of the Pleistocene Epoch?
A) Increased rainfall B) Decreased evaporation C) Increased runoff D) Increased mass of glacial ice E) Increased numbers of lakes
Tropical rain forest or tropical wet climates often experience significant changes in temperature from the warmest temperature of the day to the coldest temperature of the day. Sometimes there is more change in temperature on a daily basis than winter to summer
Indicate whether the statement is true or false