http://raconteur.net/sustainability/top-5-tech-innovations-in-agriculture
https://www.reference.com/history/meaning-green-revolution-eaa8d97b1fc0828d
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By the end of the last ice age - about 11000 years agp - humans began the practice of farming, or agriculture
Monoculture is a practice that growing new varieties of crops that produce higher yields. Green revolution is the effort when modern techniques were introduced (monoculture and the use of chemical fertilizers). |
Renewable resources can regenerate if they are alive or can be replenished by biochemical recycles if they are nonliving.
Nonrenewable resource is one that cannot replenished by natural processes. Sustainable development is a way of using natural resources without depleting them and of providing for human needs without causing longterm environmental harm. Human activity can affect the quality and supply of renewable resources (land, forests, fisheries, air, and fresh water). Soil erosion is the wearing away of surface soil by water and wind which rate is increase by the plowing the land removes the roots that hold the soil in place. Desertification is the process that a combination of farming, overgrazing, and drought in certain regions of the world with dry climates has turned once productive areas into desert. Deforestation, or loss of forests can lead to servere erosion as soil is exposed to heavy rains. Aquaculture is the rising of aquatic animals for human consumption. Smog is a mixture of chemicals that occurs as a gray-brown haze in the atmosphere. Pollutant is a harmful material that can enter the biosphere through the land, air, or water. Acid rain can kill plants by demaging their leaves and changing the chemistry of soils and standing-water ecosystems. |
https://learn.weatherstem.com/modules/learn/lessons/1/07.html
http://daily.jstor.org/deforestation-lead-drought/
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http://businessbiodiversity.in/knowledge/what-is-biodiversity
https://www.exploringnature.org/db/view/3569
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Biodiversity is the sum total of the genetically based variety of all organisms in the biosphere.
Ecosystem diversity includes the variety of habitats, communities, and ecological processes in the living world. Species diversity refers to the number of different species in the biosphere. Genetic diversity refers to the sum total of all the different forms of genetic information carried by all organisms living on Earth today. Biodiversity is one of Earth's greatest natural resources. Species of many kinds have provided us with foods, industrial products, and medicines. Extinction occurs when a species disappears from all or part of its range. Endangered species is a species whose population size is declining in a way that places it in danger of extinction. Habitat fragmentation is a process that develop often splits ecosystems into pieces. Biological magnification is the process that concentrate on a harmful substance increase in organisms at higher trophc levels in food chain or food web. Invasive species is organisms whose introduced into new habitats that reproduce rapidly. Conservations is the wise management of natural resources including the preservation of habitats and wildlife. |
Ozone layer is the layer between 20 and 50 km above Earth's surface, the atmosphere contains a relatively high concentration of ozone gas which absorbs most of the ultraviolet radiation reaching the earth from the sun.
Global warming is the increase in the average temperature of the biosphere. |
http://firsttoknow.com/end-of-global-warming/
http://www.kidzworld.com/article/17859-the-kids-guide-to-global-warming
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