Which of these sets of elements has similar properties? chromium, magnesium, iron, cobalt oxygen, nitrogen, carbon strontium, magnesium, calcium, beryllium hydrogen, helium, neon

i just calculated it all out, and not including weekends, and all the different days off. as of this school year (2018-2019) students are spending 2198 hours in school this year

answer: cellular respiration takes in food and uses it to create atp, a chemical which the cell uses for energy. usually, this process uses oxygen, and is called aerobic respiration. it has four stages known as glycolysis, link reaction, the krebs cycle, and the electron transport chain.