The answer is observations
Answer:
While exercise is a common cause of muscle fatigue, this symptom can be the result of other health conditions, too.
Causes of muscle fatigue
Addison's disease.
age.
anaerobic infections.
anemia.
anxiety.
botulism.
cerebral palsy.
chemotherapy.
Answer: B
Explanation:
Hydrogen love water (H20) wouldn’t make sense if they burned in water
Answer:
cellular respiration...that's breathing out of humans
and through human activities like burning of fossil fuels...
Answer:
False
Explanation:
The planets orbit because of the suns gravitational pull