60spf or higher
I think not sure but pretty sure that's correct
<span>Advertising everywhere we go, on television and billboards. There's even places where the candy and other fattening foods are right in our face, everywhere you go, even where you go to get fuel for vehicles.</span>
The part of muscle that he needs to train is the Slow-twitch muscle fibers.
<h3>What are Slow-twitch muscle fibres?</h3>
The Slow-twitch muscle fibers are the muscle fibres that are used to support long distance endurance journey such as the marathon race.
Therefore, the part of muscle that he needs to train is the Slow-twitch muscle fibers.
Learn more about muscle here:
brainly.com/question/13920046
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