Answer:
D.choosing clothing that is appropriate for the environment and type of exercise
Explanation:
the other ones are a safety concern
this is the only one that is 100% safe
Answer:
all of them must be cleaned and sanitized
the answer is A.) Heart rate
is a simple and practical method for monitoring the amount of work your heart is doing at any given time
Answer:
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Answer:
Besides solar fluctuations, the amount of radiation is also affected by small particles called aerosols. The more aerosols are present in the atmosphere, the less solar radiation reaches the Earth. Large quantities of aerosols actually help to cool down the Earth and to temper ('dim') the greenhouse effect.
Explanation:
