When liquids change to a solid phase, they
A. release energy.
B. absorb energy.
C. neither A nor B
Answer: A
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How many electrons are gained or lost in the following half-reaction? Cl2 ? 2 Cl-
A. 2 electrons are lost B. 1/2 electron is gained C. 1/2 electron is lost D. 2 electrons are gained E. 4 electrons are gained
The movement of water up the xylem of a plant
A. occurs due to active transport. B. requires cohesion but not adhesion. C. occurs as a result of the movement of sugars in the phloem. D. requires no energy input from the plant.
Based only on the appearance of the surrounding landscape, does Shiprock appear to be composed of different rock or similar rock materials than surrounding rocks? Note the observations that led you to your opinion.
What will be an ideal response?
An aquifer is an impermeable surface through which groundwater flow is restricted
Indicate whether the statement is true or false