Phytoplankton in the ocean
a. provide much of the planet's oxygen
b. provide much of the planet's carbon dioxide
c. remove much of the planet's carbon dioxide from the atmosphere
d. remove much of the planet's oxygen
e. provide much of the planet's oxygen and remove much of the carbon dioxide from the atmosphere
E
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Explain this statement made by the German scientist Paracelsus: "The dose makes the poison."
What will be an ideal response?
A snowball that rolls down a hill, gradually gaining more and more mass and rolling faster and faster as it continues, would be an example of a(n)
A) positive feedback system. B) negative feedback system. C) open system. D) closed system.
Describe the composition of a cinder cone
What will be an ideal response?
Which type of fog occurs during nights when skies are clear and relative humidity is high?
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