sco 12.0 Flashcards
those that are sourced from the biosphere - organic and living parts of the Earth.
biotic resources
are those that are sourced from the non-organic and non-living parts of the Earth
abiotic resources
are those that can replenish naturally after human use
renewable resources
resource that do not replenish naturally after human use
non renewable resources
are those that are neither renewable or non-renewable and are not exhausted by human use
flow resources
how people utilize the land to benefit their needs and wants.
land use
Small scale production of crops and raising of livestock to meet the immediate needs of families. Most common in LEDCs.
subsistence farming
High yield farming that occurs on relatively small amounts of land.
intensive farming
Low yield farming that occurs on relatively large amounts of land.
extensive farming
The application of biological processes for agricultural purposes, which can improve output
biotechnology
Large scale food production industry that is owned and operated by corporations. These corporations often produce the inputs required for agriculture
corporate farming
the deterioration of the productive capacity of soil for either present or future use.
land degradation
the removal of the nutrient-rich layer of topsoil by either wind or water.
erosion
when human activities reduce the productivity of an arid or semi-arid areas to the point where it resembles a desert.
desertification
When land is cleared for timber or more usually agricultural use the soil is exposed to erosion. This is particularly damaging in tropical area with higher annual precipitation.
deforestation
When too many livestock cattle, sheep, or goats graze/feed on a particular area destroying the vegetation and exposing the soil to erosion.
overgrazing
When expanding towns and cities take over more land that had been used as form land as well as wildlife habitat.
urbanization
a temporary shortage of food
famine
extreme hunger over a period of time
starvation
medical condition of poor health caused by poor diet. Usually as a result of little to no food, not enough nutrients, etc
malnutrition
insecure food supply over a long period of time, often times leads to starvation
chronic hunger
remove salt from ocean water, but it is very expensive and requires considerable amounts of energy.
desalination
has no political boundaries because it is part of the systems that circulate throughout the world.
global commons
the capacity of a population to safeguard sustainable access to adequate quantities of acceptable quality water.
water security
the process of solving an environmental problem.
remediation
the most polluted river in the world because of pollution from the textile and chemical industries.
citarum river
Large dams are used to protect against flooding, providing water for irrigation, and to produce hydroelectric power.
dams and irrigation
The world’s largest dam
three gorges dam
a very poisonous form of mercury. It forms when bacteria react with mercury in water, soil, or plants.
methylmercury
the primary source of energy for the last 200 years. (oil, coal, natural gas, nuclear, and hydro)
conventional source
sources of energy that are developed to avoid or lessen the impact of fossil fuel use.(solar, biofuels, wind power, and geothermal energy)
alternative source
when we are running out of cheap, conventional oil
peak oil
a way to store electricity generated from wind or solar power
pumped storage and hydricity
