2 An estuary is where fresh water and salt water meet. They are nutrient rich and the calm protected waters make good nurseries for fish.
3 Cold nutrient rich water coming up from below to replace top waters that are blown off shore. Form the basis for a strong fishery
4 energy decreases by 90%
5 zooxanthellae are phytoplankton that live in with the coral polyps providing them with oxygen (for respiration) and carbon (for shell building)
6 sea lettuce
7 bacteria converts hydrogen sulfide into sugars that form the basis for the hydrothermal vent community.
Volcanoes, Quakes, PT
2 P waves are faster, and can travel through solids and liquids
3 convergent boundary between two continental plates
4 transform boundary
5 Convergent boundary between two oceanic plates. The less dense plate sinks, melts, magma rises and forms islands.
6 hot spot!
Rocks and Minerals
1 C-12: 6 protons and 6 neutrons
C-14: 6 protons and 8 neutrons
2 cools slowly
space to grow
high concentration of minerals
3 greater than 2 and less than 4
4 igneous rock undergoes weathering to form sediment which undergoes compaction and cementation (lithification) to produce sedimentary rock
5 mafic rocks have a high magnesium and iron content and a low silica content. They are dark in color. Felsic rocks have a high feldspar and silica content. They are light in color.
6 accumulation of materials derived from mechanical and chemical weathering. Examples: sandstone, siltstone, conglomerate
7 granite, limestone, slate