When you shake fish food into in an aquarium, you are contributing to a(n)
A. positive feedback system.
B. negative feedback system.
C. open system.
D. closed system.
Answer: C
Environmental & Atmospheric Sciences
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What will be an ideal response?
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Cinder cones are composed primarily of
A) ejected fragments of vesicular lava. B) blocky lava flows and lahar deposits. C) pahoehoe and/or aa. D) volcanic ash.
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Discuss the different types of subsistence agriculture practiced around the world
What will be an ideal response?
Environmental & Atmospheric Sciences
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Environmental & Atmospheric Sciences