In which part of a stream's course would one typically find bedrock channels?
A) Headwaters
B) At confluences
C) Mouth
D) In a delta
Answer: A
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The most prominent features on the ocean floor are the ________
A) deep-ocean trenches B) seamounts C) lava plateaus D) oceanic ridges
Which of the following reasons for climatic change is proposed by the Milankovitch theory?
A. volcanic eruptions B. changing levels of CO2 in the Earth's atmosphere C. particles suspended in the Earth's atmosphere D. variations in the Earth's orbit as it travels through space
How can the last glacial maximum best be described?
A. Long warm episodes and long cold periods B. Long warm episodes and short cold periods C. Short warm episodes and long cold periods
Per capita meat consumption has ________ since 1950
A) doubled B) increased by 50% C) increased fivefold D) dropped by 50% E) tripled