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Biogeochemical
The living distribution of chemicals.
Influx
Rate at which the chemical is entering a system.
Outflux
Rate at which the chemical is leaving a system.
Reservoir
Water collecting area.
Residence time
How long the molecules stay in a particular system.
Pool
A smaller reservoir.
Steady State
Condition where influx equals outflux.
Three States of Matter
Solid, Liquid, and Gas cycles.
Freezing
The process of turning a liquid into a solid.
Melting
The process of turning a solid into a liquid.
Sublimation
The process where a solid turns directly into gas.
Deposition
The process where gas turns into a solid.
Evaporation
The process where a liquid turns into gas.
Condensation
The process where a gas turns back into a liquid.
Transpiration
The process by which plants lose water vapor through their leaves.
Percolation
Water moves downwards into the soil under gravitational forces.
Carbon Cycle
The cycle in which carbon is exchanged among the biosphere, pedosphere, geosphere, hydrosphere, and atmosphere.
Nitrogen Cycle
The cycle through which nitrogen is converted into various chemical forms.
Sulfur Cycle
The cycle of sulfur in the environment.
Photosynthesis
Process where H2O and CO2, under sunlight, produce sugar and oxygen.
Chemosynthesis
Process where CO2 and H2O, along with hydrogen sulfide, produce sugar and sulfur compounds.
Phosphate Cycle
The movement of phosphorus through the environment.
Decomposition
How long it takes for garbage to break down naturally.
Non-Municipal Waste
Waste from factories, mining, and construction sites.
Municipal Waste
Waste from households, businesses, and institutions.
Hazardous Waste
Waste materials harmful to human health or the environment.
Corrosive Waste
Waste capable of damaging living tissue or materials.
Ignitable Waste
Waste that can easily catch fire.
Reactive Waste
Waste that undergoes violent chemical reactions when exposed to specific conditions.
Toxic Waste
Waste containing substances that can cause harmful effects or death.
Sanitary Landfill
A landfill designed to contain waste with minimal environmental impact.
Incineration
The burning of trash to reduce volume.
Compost
Decomposed organic matter used as a nutrient-rich soil amendment.
Recycling
The process of converting waste materials into new products.
Upcycle
Recycling where waste becomes a new, valuable product.
Downcycle
Recycling into less useful products.
E-waste
Electronic waste containing heavy metals.
Life Cycle Assessment
Method to compare the environmental impacts of products.
Planned Obsolescence
Designing products to have a limited lifespan.
Right to Repair
Movement advocating for consumers' ability to repair their own devices.
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