the answer is a. skin color
Answer:
Your muscles will require less oxygen to move and they will produce less carbon dioxide. This will immediately reduce the amount of air you will need to breathe in and out for a given exercise.
Stimulant drug I think would be the best answer
True, emotions could be bad like feeling sad or they can be good like being happy.
X-ray radiography is the imaging technique uses radiation that is emitted from the material being imaged.
<h3>What is X-ray?</h3>
This is referred to as a penetrating form of high-energy electromagnetic radiation and is used for imaging.
The rays penetrate objects and body parts and create an image which is often used for diagnostics in healthcare centres which makes option A the most appropriate choice.
Read more about X-ray here brainly.com/question/1652936
#SPJ4
