Biogeochemical Cycles There are 5 different cycles carbon
Biogeochemical Cycles There are 5 different cycles: carbon, phosphorus, nitrogen, oxygen, and water.
An ecosystem survives by a combination of energy flow and matter recycling. Producers-plants Consumers-herbivores, carnivores Decomposers-bacteria, fungi All of the cycles work together.
Water cycle Also known as Hydrological cycle 1 - evaporation: water rises as gas 2 -ground water: water that seeps into the ground. Aquifers-underground lakes. 3 -precipitation: rain 4 -condensation: water turns from a gas to a liquid 5 -runoff: excess overflow runs down due to gravity 6 -ocean
Water • 70% of Earth is covered in water • Only 3% is fresh water available for drinking
Humans effect on the water cycle Humans Effect on the Water Cycle -withdrawing large amount of freshwater -clearing vegetation and eroding soils -polluting surface and underground water -contributing to climate change
Carbon Cycle 1 -Animals breathe out CO 2 2 -Plants take in CO 2 and put oxygen 3 -Factories give off CO 2 4 -Animals die and decompose-some of carbon seeps into the ground • 5 -Animals die and remains of carbon are compacted over 100’s of years and turn into coal, natural gas, and oil (nonrenewable resources). • 6 -Remains can run off to water. • 7 -Dead animals release carbon in air (stinks). • •
Nitrogen Cycle-78% of the atmosphere 1 -Animals all poop-waste seeps into ground. 2 -Nitrogen fixing bacteria clean nitrogen and make it usable for plants. 3 -Plants need nitrogen. 4 -Decomposers break down poop into nitrogen.
Phosphorus Cycle 1 -Phosphorus is in rocks. 2 -Weathering and erosion breaks down rocks. Phosphorus is released in water and soil. 3 -Plants pick up phosphorus from roots. Animals eat plants and drink water.
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