The correct answer would be the second option. The correct plan for his experiment would be that the temperature, the type of limestone, and the type of acid are controls. The amount of acid and the amount of damage to the limestone are variables. To determine the degree of damage of the acid it would be best that the amount of acid is the manipulated variable while everything else are assumed constant.
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Answer:
Writers use personification to give human characteristics, such as emotions and behaviors, to non-human things, animals, and ideas. The statement “the story jumped off the page” is a good example of personification.
Explanation:
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It is important to obtain a job that has medical benefits because Healthcare services and medical insurance plans are very expensive.
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Answer:
Psychologist
Explanation:
A professional who holds a doctoral degree but has not attended medical shcool and may work in a large number of vocational settings would function as a psychologist.
