do the energy humans use in their cars actually originate from the sun? they do! most products like oil, gas, and coal actually come from the sun. the reason why i say this is because all those things are natural which means they came from photosynthesis. according to the site (Where Does the Energy in Fossil Fuels Come From? http://techalive.mtu.edu) "So, in one sense, gasoline-burning cars, coal-burning power plants, and homes heated by natural gas are all solar powered!"
<span>There are three major types of blood vessels: the arteries, which carry the blood away from the heart; the capillaries, which enable the actual exchange of water and chemicals between the blood and the tissues; and the veins, which carry blood from the capillaries back toward the heart</span>
