A. Conversion of radiant energy into chemical energy.
Electricity, I'm not sure if that's what you mean or if that was even a question.
Answer:
a persons risk will increase
Explanation:
you have to stay mentally and physically healty with exercises.
I would go with hypothesis because I never heard any of the other answers in Bio and a hypothesis is an educated guess so it means what you already know and it’s an observation (I hope this helped!!)