When you shake fish food into an aquarium,you are contributing to a(n)
A) open system.
B) negative feedback system.
C) positive feedback system.
D) closed system.
Correct Answer:
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Q12: Geography is considered to be
A)a natural science.
B)a
Q13: The hydrologic cycle includes all of the
Q14: Which of the following would be an
Q15: The "sphere" that intersects with all of
Q16: A snowball that rolls down a hill,gradually
Q18: The difference between open and closed systems
Q19: Which of the following is an example
Q20: The lithosphere refers to the
A)plasticky interior of
Q21: In the topographic map below,the place with
Q22: The most direct example of an atmosphere-lithosphere
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