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Barbara is converting 78°f to degrees celsius. first, she subtracts 32 from 78. what is the next step?
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Which symbols below represent the ions found in the glass of water ? a. oh- and h+ b. co2 and o2 c. o2 and h2 d. nh3- and h+
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Study this image which statement best describes the rock shown check all that apply
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Which of the following is a reason why early living organisms on earth could not have survived on the surface? 1. the lack of an ozone layer 2. the lack of oxygen in the atmosphere 3. the fact that these organisms were single-celled
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The picture lists light waves from left to right in order of highest to lowest energy. which region...
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