Chapter 5 & 6
biogeochemical cycle
path a chemical takes through 4 major reservoirs–Atmosphere, Hydrosphere, Lithospere, Biosphere
chemical reactions
the process in which new chemicals are formed
H2O + CO2 –> H2CO3
Carbonic Acid reacts with things such as rocks and soils torelease chemicals into the environment
macronutrients
elements recquired in large amounts by all life
Big 6 building blocks of life
Phosporous, Sulfur, Carbon, Hydrogen, Oxygen, Nitrogen (PS CHON)
plate tectonics
creation and destruction of solid outer layer of the Earth (lithosphere) through the movement of the plates. The plates’ boundaries are geologically active
Divergent plate
plates move away from each other. Aka seafloor spreading bc it causes ocean basins.
convergent plates
plates collide with each other–makes mountain ranges
transform fault
one plate slides past another
rock cycle
processes that make rocks and soil. Recieves energy from tectonic cycle and water from the hydrolic cycle
igneous rocks
the cooled magma from when rocks are pushed together under the earth’s surface ( convergent plates?). Insde Earth=intrusive; Outside=extrusive
sedimentary rocks
the combination through lithification of the small segments of rock broken down from rocks by weathering and erosion
metamorphic rocks
rocks exposed tohigh temperatures or pressures. Often in extrusive ignous rock magma
ecosystem
ecological community and its nonliving environment interacting. Understood through structure (by species occurrence or location–living [ecological community] and non-living [physical chemical environment]), processes, functionally (by species interactions), and dynamism (change over time. Always can be decribed in terms of food webs, food chains, and trophic levels
Dominant Oceanic producers
phytoplankton
Dominant Oceanic Consumer
zooplankton (small freefloating invertebrate animals)
Community-level interactions
indirect species interactions
watershed
how terrestial ecosystejs are identified. the area of land drained by one stream. Members of a watershed are united by that system’s cycling
6CO2 + 6H2O = C6H12O6 + 6O2
photosynthesis; so differet from the carbonis acid reaction bc it is driven by life
basic ecosystem cycle
photosynthetic organisms make sugar from carbon dioxide and water which is made into other organic compounds (protein, woody tissue..) ending with decomposers to get back to inorganic compounds
hydrolic cycle
transfer of water from oceans to the atmosphere to the land and back to the oceans. Involves evaporation of water from oceans, Precipitation on land
Evaporation from land, Runoff from streams, rivers and subsurface groundwater
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