As oil resources are depleted the ratio, or energy return on investment (EROI), will
A. increase.
B. decrease.
C. remain steady.
D. be greater than one.
E. become equal to one.
Answer: B
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Which of the following best describes a floodplain?
A) an area that is incidentally flooded when farming or mining operations change the course of rivers B) an area that is periodically flooded because humans have altered the landscape C) a region of land that is periodically flooded when a river overflows D) a region of land that has been deliberately, permanently flooded due to human disturbance, such as in dam building E) an area where flood irrigation of crops is used, such as a rice paddy
A large, rapid mass wasting event that is difficult to classify is often called a(n) _____
a. ground tsunami b. landwave c. landslide d. landflow e. earthslide
Dinosaurs and large mammals coexisted during the Mesozoic era
Indicate whether this statement is true or false.
Folded limestones that occur high in the Himalayas were originally deposited as sediments in a ________.
A) late Paleozoic syncline north of the Tibetan Plateau B) deep ocean trench along the southern margin of India C) marine basin between India and Eurasia D) Cenozoic fault basin between Africa and Arabia