10.2 hours is equivalent to three half-lives, so after 10.2 hours, the mass of the sample would have decayed by half three times over. If one starts with 100 mg of the sample, then after three half-lives, there would be 100(0.5)³ = 12.5 mg of the sample remaining.
Thus, the correct answer choice here would be D.
Answer:
In photosynthesis, solar energy is harvested as chemical energy in a process that converts water and carbon dioxide to glucose. Oxygen is released as a byproduct. In cellular respiration, oxygen is used to break down glucose, releasing chemical energy and heat in the process.
Explanation:
hope this helps you greatly! may i be marked as brainliest?
I am agreeing i think it would be a wizard as well
