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The number is a positive or negative number assigned to an atom according to a set of arbitrary rules.
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The organism shown is a free-living one that is anchored to the bottom of ponds and streams during one stage of its life cycle what is the common name for the group to which this organism belong
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Great amounts of electromagnetic energy from our sun and other bodies in space travel through space. which is a logical conclusion about these electromagnetic waves? their energy must be very their frequency must be very low these waves can travel without a medium they only travel through a vacuum of space
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One similarity and one difference between an element and a mixture of elements
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The number is a positive or negative number assigned to an atom according to a set of arbitrary rul...
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