I believe the answer would be d.muscle cramps. Breathing in toxins seems like it could relate to the other three answers.
The answer is B ( too many words can cause confusion)
Good luck on your test
If you use the same mesurment system no one gets confused and everyone is on the same page
Your lungs. The lungs control your ph balance by releasing carbon dioxide
Answer:
Doesnt make you smart, can make you lazy and can get you fat
Explanation:
