Read the paragraph below:

"Lake Powell, though not a lake, may well be, as its defenders assert, the most beautiful reservoir in the world. Certainly, it has a photogenic backdrop of buttes and mesas projecting above the expansive surface of stagnant waters where the speedboats, houseboats, and cabin cruisers play. But it is no longer a wilderness. It is no longer a place of natural life. It is no longer Glen Canyon."

Which word from the paragraph did the author most likely use because of its...