ipt A wall that was once white is painted black. Which of the following is definitely true of the painted wall? A. Its chemical properties have changed. B. Its physical properties have changed. C. Both its physical properties and chemical properties have changed. D. None of its characteristic properties have changed.
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As air becomes more dense, (select all that apply) o. air weighs less o. gas molecules are closer together o. air is colder o. air weighs more o. gas molecules are further apart o. air is hotter
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Consider the story you just read. all but one of the choices below indicate that something is living.
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ipt A wall that was once white is painted black. Which of the following is definitely true of the pa...
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