Wendy S Washington

Drinking water Water pollution. Water is H 2 O. Water. is a tasteless, odourless, appearing colourless for naked eye substance that is essential to all known forms of life. is a universal solvent .

Chapter 7 Notes . Book chapter 5 Video #18. 7-1 Chemical Bonding. -Atom: basic building block of matter -114 elements (video #19, 20) *Chem bonding: combining of atoms of elements to form new substances. -Electrons and nrg Levels. -2,8,8 *Valence e-: -Stable vs Nonstable. Ex’s.

The World’s first robotic, LED based , smear microscope for TB screening!. The Tireless Technician!. Facts about the TB burden. With 8.8 Mi new cases annually and almost 1,5 Mi deaths, TB is still a leading mortality factor TB is the leading killer of people with HIV