If Earth warmed up, and more snow fell because of more water vapor in the atmosphere, and that snow then reduced Earth's temperature, which increased snow cover, then the initial increase in snow fall would be ________ feedback, while the continued
increase in snow fall would be ________ feedback.
A) negative; positive
B) positive; negative
C) negative; negative
D) positive; positive
E) both negative and positive; both negative and positive
A
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Which should be larger, the potassium atom, K, or the potassium ion, K??
A) The potassium ion, K?, is larger since charging an atom always makes it larger. B) The potassium atom, K, with an additional shell of electrons is larger. C) The potassium ion, K?, is larger since it has an extra electron which increases its size. D) The potassium atom and the potassium ion are exactly the same size and only differ in charge.
In which ways does pressure influence different rock compositions' melting points?
A) the more pressure, the higher the melting point B) the more pressure, the lower the melting point C) pressure changes the composition of the rock, raising the melting point D) pressure changes the composition of the rock, lowering the melting point
How did use of groundwater affect surface water resources in the case of the San Joaquin River,
California? What will be an ideal response?
What are the primary elements in Earth's continental crust?
A) oxygen, uranium, and thorium B) oxygen, silicon, and uranium C) oxygen, silicon, and aluminum D) iron, aluminum, and carbon