Resource Issues Chapter 14. Melony Espaillat Ap Human Geography. Key Terms Acid deposition: Sulfur oxides and nitrogen oxides, emitted by burning fossil fuels, enter the atmosphere-where they combine with oxygen and water to form sulfuric acid and nitric acid-and return to Earth’s surface
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Ap Human Geography
Biomass fuel:fuel that derives from plant material and animal waste.
Ozone:gas that absorbs ultraviolet solar radiation, found in the stratosphere, a zone between 15 and 50 kilometers (9 to 30 miles) above Earth’s surface.
Renewable energy:A resource that has a theoretically unlimited supply and is not depleted when used by humans.
The problem is that most resources are limited, and Earth has tremendous number of consumers
Three of Earth’s substances provide five-sixths of the world’s energy
Earth has 92 natural elements, but about 99 percent of the crust is composed of 8 elements –oxygen, silicon, aluminum, iron, calcium, sodium, potassium, and magnesium.
They are either metallic or nonmetallic.
-In weight, more than 90 percent of the minerals that humans use are nonmetallic, but metallic minerals are especially important for economic activities and so carry relatively high value.
-these minerals are fashioned into structures, roads, monuments, tools, and many other objects of daily use
-also used for fertilizer
Metallic Minerals-have properties that are especially valuable for fashioning machinery, vehicles, and other essential components of an industrialized society
Ferrous Metals: refers to iron
Nonferrous: utilized to make products other than iron and steal
All of the resources we use are eventually returned to the atmosphere, bodies of water, or land surface, through burning, rinsing, or discarding.
We rely on air, water, and land to remove and disperse our waste.
Depletion and destruction of resources can be reduced through reuse.
Renewable resources can be substituted for nonrenewable ones. Recycling unwanted by-products into resources can replace the discharging of these products into the environment.
The leading source of renewable energy currently are biomass and hydroelectric. Geothermal, wind, and solar are also currently used but are less common.
Because it is one part natural science and one part social science, geography is especially sensitive to the important of protecting the natural environment while meeting human needs. “Conservation” is a concept that reflects balance between nature and society.
Through sustainable development, human can improve their quality of life while protecting Earth’s resources for the benefit of future generations.
Biodiversity is an important concept because it is a way of summing the total value of Earth’s resources available for human us. Sustainable development is promoted when the biodiversity of a particular place or Earth as a whole is protected.