| A | B |
|---|
| causes of salinity | type of H2O; temp of H2O |
| sinks of minerals in ocean H2O | marine plants and animals when they die; precipitation |
| sources of sink holes | underwater volcano, mineral erosion, minerals floating to ocean, marine organism deaths |
| pH scale | 0-14; acid, neutral or base |
| pH natural rain | 5.6 |
| pH acidic rain | lower than natural rain b/c of CO2 |
| logarithmic | each number is 10 times higher or lower than next |
| acid rain | contains CO2 from fossil fuels, carbonic acid, nitric acid |
| anthropogenic acid rain | human caused (factories/smokestacks) |
| sulfuric acid | H2SO4 (H2O + SO4); strong acid |
| sulfur | used in coal burning |
| carbonic acid | H2CO3 (H2O + CO2); weak acid |
| nitric acid | HNO3; H2O combines with nitride, often released from lightning |
