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horrorfan [7]
2 years ago
10

How does a mask protect us?

Biology
1 answer:
nata0808 [166]2 years ago
5 0

Answer:

Masks are a simple barrier to help prevent your respiratory droplets from reaching others. Studies show that masks reduce the spray of droplets when worn over the nose and mouth.

Explanation:

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B. Offering advice about how best to perform a standard procedure.

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A scientist can help a colleague out by offering advice and telling the person how to best perform a standard procedure. This will help the colleague do better in the experiment and also help ensure that the right things are done and the efforts are successful. The other options are all negative in their 'approach' which will only hinder the colleague in his/her works.

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