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24 Cards in this Set
- Front
- Back
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Causes of human population growth
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The Agricultural revolution, Industrial revolution, and Urbanization
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Agricultural Revolution
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People settled into communities and more people were needed for division of labor; more reliable food supply can support a larger population
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Industrial Revolution
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In the early 20th century technological advancements led to improvements in medicince and sanitation allowing for an increased birth rate and decreased death rate
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Urbanization (development of cities)
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Leads to economic and social devleopment which influence human populations
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Effects of human population
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Overcrowding, Increased pollution, Decreased natural resources, and Increased land use
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Solutions to human population growth
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ZPG and Conservation
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ZPG (Zero Population Growth)
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(birth rate == death rate) a. Limit number of births per family by offering tax incentives b. Make birth control and family planning more available c. Educated public and out political leaders
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Conservation
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Wise and careful use of resources (Reduce, Reuse, Recycle)
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Reduce
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Use less matericals
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Reuse
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Use products more than once
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Recycle
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Return products to be re-processed
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Sustainability
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Ensuring the availability of resources and a stable environment for future generations
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CO2
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Comes from burning fossil fuels in power plants, factories, and cars
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CH4
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Comes from bacteria in landfills and cow farts
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Biodiversity
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The number of different species of organisms that exist with an area and the genetic diversity with each species
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Deforestation
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Forests are cut down for timber, agriculture and development
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Fragmentation
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Natural territories are broken down into areas too small to support native populations
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Biomagnification
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Increasing concentration as pesticides move up the food chain
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Bioacummulation
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The build up of certain pesticides in the tissues of organisms
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Endangered Species
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Species that are at risk for extinction
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Extinction
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The total loss of a species worldwide.
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Global Imaging
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Scientists use satellites to track changes in globa temperature and the ozone layer
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Ice Core Analysis
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Analyze ice formed long ago to determine the greenhouse gases present in the atmosphere at that time
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Census Data
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Demographers construct histograms to use in predicting future population growth trends
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