When Nellie Newton is inside a freely-falling elevator her
A. gravitational interaction with Earth is zero.
B. weight is zero.
C. acceleration is zero.
D. all the above
Answer: B
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How many units of energy are required to produce one unit of grain-fed beef?
a. One b. 10 c. 15 d. 25 e. 35
One way to understand our interdependence with the environment is to ________
A) curb human population growth B) continue our current rate of resource use until we are forced to return to a more localized agrarian society C) consider and value the origin of what we use in our daily personal lives D) ignore it E) continue rapid development of all resources
A break or weakness in the continuity of the crust of the Earth is called a ________.
A. Volcano B. Fault C. Tectonic plate D. Subduction zone
Which type of planet is most likely to have volcanoes?
A. Dwarf B. Jovian or gas giant C. Terrestrial or rocky