Swimming alone
A. is never safe, regardless of ability.
B. is acceptable in a pool but never in a lake or an ocean.
C. is OK as long as you've been swimming for at least five years.
D. increases the benefits of swimming for cardiorespiratory endurance.
Swimming alone is never safe, regardless of ability.
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Asked 7/10/2019 6:29:43 PM
Updated 7/30/2020 5:06:57 AM
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