chemical contaminations means the contamination of environment by chemical substances like chemical released by industried in water, buring of chemicals in air tjat cause air pollution etc... hope it helsp u
B: arm circles
Because arm circles require constant movement
The answer would b C.<span>There must always be one adult for every three children present </span>
Answer:
People targeting muscular endurance will aim for a range from 12 to 20+ reps. Obviously you won't be able to lift heavy amounts of weight for 20+ reps, so you'll be lifting lighter loads. Also, because you're targeting endurance improvements, you want to decrease the amount of rest between sets: 30 seconds to a minute.
Explanation:
