20.2 - Biogeochemical Cycles Flashcards

1
Q

Biogeochemical cycle

A

Movement of elements between organisms within environment

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2
Q

CHNOPS

A

Carbon, hydrogen, nitrogen, oxygen, phosphorus, sulfur

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3
Q

Hydrosphere

A

Area where water movement/storage occurs

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4
Q

Water cycle

A

Evaporation - condensation - precipitation - run-off

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5
Q

Evaporation

A

Sunlight turns water into gas, and travels through the air

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6
Q

Condensation

A

Accumulates into clouds

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7
Q

Precipitation

A

Clouds grow heavy and fall back to ground (Rain, snow, hail)

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8
Q

Run-off

A

Travels on ground into larger bodies of water

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9
Q

Carbon cycle

A

movement from abiotic environment into biotic and back; commonly through through photosynthesis and cellular respiration

Carbon sinks, stores, and sources

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10
Q

Carbon store

A

Carbon stores carbon

Rocks and oceans, underground for a long period of time

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11
Q

Carbon sink

A

Carbon absorbs more carbon than they release

Plants

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12
Q

Carbon source

A

Carbon sources release more carbon than they take in

Human emission (deforestation, burning fossil fuels), volcanoes,

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13
Q

Nitrogen cycle

A

Decomposition
Nitrogen fixation - ammonification - nitrification - denitrification (all bacteria)

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14
Q

Eutrophication

A

Extra fertilizer runoff (nitrogen and phosphorus) - algae and plants grow extremely fast, broken down by decomposers - decomposers use too much oxygen (hypoxic) - no oxygen leads to deadzone

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15
Q

Phosphorus cycle

A

Rocks through the biosphere and hydrosphere and back to rocks

Weathering, absorption, decomposition, sediments

(Weathering enters into soil, air, water, and food webs absorb it. As extra water runoff after being decomposed from the food webs waste, it dissolves and falls to ground as sediment (forms to rock/enters soil). Sometimes, it’ll fall into the ocean and the similar cycle repeats)

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16
Q

Sulfur cycle

A

Enters atmosphere 3 ways : volcanic eruptions, human emissions, decomposition
Deposits 4 ways : precipitation, weathering, geothermal vents, fallout (falling directly, ex: acid rain)

17
Q

Combustion

A

Burning fossil fuels

18
Q

Transpiration

A

Process of plants losing water through leaves

19
Q

Cellular respiration

A

Oxygen and glucose are used to produce energy and carbon dioxide

20
Q

Greenhouse gas

A

Traps heat in atmosphere (C02 major one)