i think it may be the second one
When centrifuging biohazards, it is recommended that the safety buckets and sealed rotors be: Loaded and unloaded within the biosafety cabinet.
<h3>What is meant by centrifuging biohazards?</h3>
This is the term that has to do with the user of centrifugal force in the separation and the removal of substances in liquid as well as in solid materials.
What is required is that When centrifuging biohazards, it is recommended that the safety buckets and sealed rotors be: Loaded and unloaded within the biosafety cabinet.
Read more on Biohazards here: brainly.com/question/10686710
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The excesses of that contemptible treatment is the very reason why the Haitian Revolution was so successful: the treatment of slaves and Mulattoes in Haiti was so bad that it forced the most violent and ultimately, the most successful slave insurrection in history.
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Unequal educational outcomes are attributed to several variables, including family of origin, gender, and social class. Achievement, earnings, health status, and political participation also contribute to educational inequality within the United States and other countries.
Something covered by land and no coastline.