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The direction of the current in an alternating current circuit remains constant. is direct. changes repeatedly. changes randomly.
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The first law of thermodynamics states that heat added to a system is neither created nor destroyed but is as it changes into other forms of energy.
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Global climatic patterns are changing because of the melting of polar ice caps. the melting of polar ice caps is an example of the interaction between the atmosphere and cryosphere cryosphere and geosphere hydrosphere and geosphere biosphere and cryosphere
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Elements on the periodic table are ordered according to their
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Compare the light gathering power of a 24 cm telescope to one that is only 4 cm....
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