Answer:
X represents oxygen and Y represents carbon dioxide.
Explanation:
Because in respiration, you consume oxygen and make carbon dioxide whereas, in photosynthesis, the equation is reversed and you use carbon dioxide and make oxygen and glucose.
<span>B. muscular endurance
</span>The capacity of a muscle to continue contracting over a period of time without fatigue is called muscular endurance.
NOT:
A. muscular strength.
<span>C. cardiovascular endurance. </span>
<span>D. power.</span>
Carbon is not combustible because when it combines with oxygen its energy increases thus it doesnt combust.
