I think it is the first one
Hamburger becuase you cook it on a grill and then you put it in a bun. You can add pickels, cheese, mayo, ketchup, and pretty much anything to it.
i hope im right
If there is an increase in carbon dioxide in the blood it means that the cells would increasingly take up oxygen. so then lactic acid would be produced. Also the person that has increase in carbon dioxide in blood will die. if the level of carbon dioxide in blood increases the PH decreases. when the levels of carbon dioxide increase the blood becomes more acidic.
Hope this helps:)
Chewing is also know as Mastication. Therefore, D is your answer. Hope I was able to help!
