A presumptive Test presumes the pet presence of the question substance it is useful because it tells the drug is used false positive is possible meaning that the test result is positive but the substance is not present.
Answer:
19.2 meters/second^2 would be the correct answer.
Explanation:
Answer:
<h2>
<em><u>When the tide goes out, the barnacle closes shop to conserve moisture. As the tide comes in, a muscle opens up these four plates, and the feathery legs of the barnacle sift the water for food.</u></em></h2>
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