Which agricultural practice is considered high-input?
A. industrialized agriculture
B. traditional intensive agriculture
C. traditional subsistence agriculture
D. industrial subsistence agriculture
Answer: A
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Which kind of trait is needed by members of a population that are able to survive when environmental conditions change and, in doing so, alter the makeup of that population over time?
A. genetic B. personality C. character D. innate
Coal is in limited supply because most of it was formed early in earth's history, billions of years ago, before the atmosphere contained free oxygen; it cannot form today.
Answer the following statement true (T) or false (F)
Which of the following locations would best represent a storm track characterized as bringing cold moist air to inland Canada?
A) A
B) B
C) C
D) D
E) E
What planktonic group accounts for 80% of all photosynthesis in the tropics?
A) Picoplankton B) Nanoplankton C) Microplankton D) Mesoplankton