Agrinding tool's open structure or closed structure refers to:
possible answers:
the protective covers around the tool on the grinding machine.
the factory in which the grinding takes place.
the arrangement of abrasive grains in the grinding tool.
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Which group’s rights—human participants or nonhuman animals—are the most important to protect? why? not really a right or wrong answer, but give a detailed explanation

Atotal of 980 students were asked what their favorite holiday was and 525 students said christmas what percent of students said christmas was their favorite holiday

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