Carpool to work,ride the bus,or switch to electric cars.
It's B, Most them can make or produce their own food.
Answer:
Last electron level
Explanation:
Valance electrons are always in the outside level!
Hope this helps!
We have heard about Respiration. In human beings, respiration is a cellular activity which takes place in the presence of oxygen and in result produces carbon dioxide. Jamal model is a clear manifestation of that process. Medulla is the region of a brain that controls the respiration activity. When we breathe we take in oxygen and the excess amount of carbon dioxide is removed from out body.
Brains cells have capability to detect the carbon concentration in blood and add excess amount of carbon from body to the air.