Answer:
4 km
Explanation:
There are 1.60934 km in a mile
2.5 m * 1.60934 km = 4 km
The answer is hydrogen bond.
Between water molecules, hydrogen bonds can be seen, which is due to the polar nature of water.
I think it's D. It shields life forms on the surface from radiation?
The small cell extensions that beat to create an up-ward current are called microvilli.
<h3>What are microvilli?</h3>
Microvilli are small extensions which are found on the surface of the alveoli of the lungs.
The microvilli play an important role in the lungs as the help to remove particles and mucus that may obstruct the lungs as a result of the upward current they create in the lungs from their beating motion.
Therefore, the paralyzed small cell extensions that beat to create an up-ward current are called microvilli.
Learn more about lung microvilli at: brainly.com/question/12993303
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