Which phrase best describes a biographical cycle

"record the time to complete a chemical reaction" would most likely be part of a lab procedure.

while cooking a piece of 1/2 pound beef steak, a cast iron pan (2.4kg in weight) was heated 260 celsius.

answer; capital earns interest; entrepreneurship receives a profit or incurs a loss;

answer; the numbers of valence electrons in the acetic acid molecule (ch3co2h) is 24;