The correct answer is : Circulatory and respiratory.
This condition primarily affects Caroline's circulatory system. Since the main purpose of the circulatory system is to supply the rest of the body with oxygen, this condition is greatly reducing the effectiveness of the circulatory system.
The decrease in oxygen supply to the lungs causes the reduction of the respiratory system effectivness as well, since the lung cells need oxygen for their metabolic processes.
Answer:
X-ray photon is a quantum of electromagnetic energy.
<span>centiliter is the correct answer</span>
Option D : The northern hemisphere is tilted away from the sun.