| A | B |
|---|
| Percent Water on earth by type | 97.5% seawater, 2.5% freashwater |
| Salinazation of soil | in arid regions, water evaporates leaving salts behind |
| Ways to conserve | (agriculture, drip/trickle) (industry, recyclying) (home, use graywater, repair leaks, low flow fixtures) |
| Point vs non point sources | (Point, from specific location such as a pipe) (Non-point, from over an area such as runoff |
| BOD | biological oxygen demand, amount of dissolved oxygen needed by areobic decomposers to break down organic materials |
| Eutrophication | rapid algal growth caused by ab excess of N & P |
| Hypoxia | when aquatic plants die the BOD rises |
| Photosynthesis | plants convert atmospheric C(CO2) into complex carbohydrates (glucose C6H12O6) |
