Answer:
respitory circulatory systems
Explanation:
Marco-elements are needed by the body in large amounts in order to maintain
good health
Your Answer Is...
It is a barrier to listening because if you're thinking of something else, than you're not paying attention to the person whose talking.
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My Brainly Name: AnonymousGiantsFan
Even though coal is one of the best ways to produce energy, it is also one of the most harmful. Breathing coal fumes can cause cancer and sometimes lead to certain death.
