Answer:
Answer: <u> </u><u>3</u><u>0</u><u>%</u><u> </u><u> </u><u>decrease</u><u> </u>
Explanation:
Ok?.... why are you telling us this is it a question?
Hoods become necessary any time water temperatures drop below: 20°C/68°F.
<h3>Why is it necessary to use
Hoods any time
water temperatures drop below:
20°C/68°F?</h3>
It is important to use hood so as to adjust the cold temperature, so as to be able to gain heat.
Therefore, hood serves as a covering for the head as well as the neck which has a opening face that prevent cold.
Learn more about temperatures at
brainly.com/question/25677592
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