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Test 1 part 1

Environment sum of all conditions that influence life, our health and our growth.
Abiotic non-living
Biotic living
Environmental Science the study of interactions between human systems and natural systems. How humans interact with the world.
System set of interacting components that influence one another by exchanging energy and/or matter.
Ecosystem a natural system with interacting biotic and abiotic components
Human System Subway
Natural System Water Vapor
Ecosystem Services processes that support humans (ex. Clean water, timber, fisheries, crops). Depends on healthy ecosystems.
Wetlands protect from floods, biodiversity, cleans water.
Environmental Indicators measures the health and quality of natural systems. Ex: biodiversity, global temperatures, CO2 levels, human population.
1. Biodiversity 2. Food Production 3. CO2/Global Temperature 4. Human Population 5. Resource Depletion 5 Primary Global Environmental Indicators
Biodiversity Diversity of life forms in an environment
1. Species 2. Genetic 3. Ecosystem What are the three levels of biodiversity?
Species Diversity number of species in an area or particular type of habitat
Species organisms distinct from other groups in morphology, behavior, and/or biochemical properties (DNA)
Speciation the evolution of new species (1 new species per million species) with 10,000,000 new species, we get 10 new species each year.
Background Extinction Rate 1 species lost per million, 10 species lost per year.
Extinction Rate Today 10,000 lost each year due to habitat loss, climate change and introduced species.
Genetic Diversity measure of genetic variation among individuals in a population.
High Genetic Diversity better response to environmental change
Ecosystem Diversity diversity of ecosystems or habitats in an area
Food Production the ability to grow food for humans
1. Healthy Soils 2. Technology (irrigation, fertilization) 3. 3. Productivity goes down with soil degradation, crop disease, and bad weather (floods/droughts) 4. more grain to feed livestock than humans What are 4 things that affect food production?
Anthropogenic human based, CO2 rises from combination of fossil fuels and net loss of forests that store CO2--acts as a blanket to trap heat near Earth's surface
7.4 billion Current population
1. Land degradation from mining 2. Waste and landfills 3. Air pollution 4. Non-renewable- coal, oil, uranium What are some examples of resource depletion?
Created by: acorso3
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