The final and most important step â designing the ad. After you created the campaign and fine tuned the settings, move to the ads level and hit Edit next to an ad. First, you will be asked to select the destination for your ads: your Instagram account and your Facebook page.
Confidence votes 1.5K. Carbon is actually the most common element in our body (in any living organism). Apart from carbon, oxygen, nitrogen and hydrogen are present in considerable amounts. 4 people found this useful.
Major Classes of Compounds in the Human Body. 1  Water: Water is the most abundant chemical compound in living human cells, accounting for 65-90% of each cell. It's also present between cells. 2  Fat: The percentage of fat varies from person to person, but even an obese person has more water than fat.