The correct answer is B. carbon dioxide in the Earth's atmosphere
Answer:You amswer is 2 or 7 ok
Because unless you move your not going anywhere
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The answer to this question is letter A.<span>
nervous system and musculoskeletal system </span></span></span></span>
When person touches a hot surface with his hand and his hand springs back. His nervous system and musculoskeletal system is operating.
<span>A.nervous system and musculoskeletal system B.cardiovascular system and endocrine system C.musculoskeletal system and endocrine system D. nervous system and cardiovascular system</span><span>
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