Answer:
Actually I don't think there are any calories in it
Explanation:
They are referred to as a "physician"
Answer:
The correct answer is option A
A. Maintaining a good mask-to-face seal is difficult.
Explanation: this is because of the relationship between the mask size and the mask seal. A wrong size of mask will hinder a good seal causing air to escape through the edges making it difficult to breath.
The best answer would be letter D. Walking on the treadmill is easy but the hard part is being consistent with your routine in order to maintain cardiovascular health. As Bethany goes on walking on the treadmill, the activity becomes familiar which leads to boredom. She needs to explore other physical activities so that excitement and the interest will still be there.