1. Bell Ringer ENR 1 20.01

2. A. 1 atom of Hydrogen and 2 atoms of oxygen B. 1 atom of Helium and 2 atoms of oxygen C. 2 atoms of Hydrogen and 1 atom of oxygen D. 2 atoms of Helium and 1 atom of oxygen 1. The BEST way to describe the chemical makeup of water is:

3. 2. A watershed can BEST be described as: A.A land area from which all of the water that does not infiltrate the soil runs to a downhill location B.An area from within the earth that collects water C.A land area used to pump water to higher elevations D.A device used to sanitize water for human consumption