Absolutely. It's the theory that best fits the facts. Evolution is easy to observe in organisms with short life-spans: viruses, bacteria: not only is it easy to observe, but DNA sequencing shows the mutation and adaptation clearly. People who oppose teaching evolution do so for reasons which have nothing to do with science. There's no one so blind as the one who WON'T see. UPDATE: how comforting to know that God exhales carbon dioxide; I'm glad Genesis makes that so clear. I considered writing a paragraph here on soil chemistry and common naturally occurring elements, but I realize I am wasting my time.