available source of wealth
an organization of countries formed in 1961 to agree on a common policy for the production and sale of petroleum, Organization of Petroleum Exporting Countries
Power supplied by people or animals.
Power supplied by machines
Disposed material or renewable resources (such as compost) used to create energy or agricultural products.
fuel consisting of the remains of organisms preserved in rocks in the earth's crust with high carbon and hydrogen content
Any source of energy that can be continually produced and is inexhaustible given current conditions.
a source of energy that exsists in limited quantities and once used, cannot be replaced except over the course of millions of years
The amount of energy in deposits not yet identified but thought to exist.
An accurate estimate of how much of the resource can be extracted on an economic basis
Part of the atmosphere that has become contaminated by gases and solid particle from the burning of fossil fuels, the use of industrial products as well as from natural causes such as wind erosion.
pollution caused by contaminants from sewers, industries, farms, and homes which enter water sources.
Byproducts such as glass,metal,paper,plastic, and other waste we produce that ends up in landfills or scattered on land.
green house effect
The warming of the surface and lower atmosphere of the Earth that occurs when water vapor, carbon dioxide, and gases absorb and radiate thermal energy.
An increase in the average temperature of the earth's atmosphere, especially a sustained increase sufficient to cause climatic change
energy from the sun that is converted into thermal or electrical energy
Process of combining 2 hydrogen to form helium and give off energy
Electricity produced by the kinetic energy of water moving over a waterfall or dam.
energy derived from the heat in the interior of the earth
Dvelopment that meets the needs of the present without compromising the ability of future generations to meet their own needs
a fossil fuel in the gaseous state
fossil fuel consisting of carbonized vegetable matter deposited in the Carboniferous period
an oily, dark-colored, flammable liquid found in the earth, consisting mainly of a mixture of various hydrocarbons.
the energy released by a nuclear reaction
lacks the features of a metal. most have a dull surface and are poor conductor of heat and electricity.
have properties that are sepcially valuable for fashioning machinery, vehicles, and other essential components of an industrialized society, many metals form alloys
Contain iron and are magnetic
Don't contain iron and do not rust
Precipitation with a pH less than 5.6 that forms in the atmosphere when certain pollutants mix with water vapor.
The most common method of disposal of solid waste, by compacting it and burying it under a shallow layer of soil
the act of processing used or abandoned materials for use in creating new products
the ability to keep in existence or maintain. a sustainable ecosystem is one that can be maintained
the diversity of plant and animal life in a particular habitat (or in the world as a whole)
Equatorial region between the Tropic of Cancer (23 1/2 degrees N) and the Tropic of Capricorn (23 1/2 degrees S). It is characterized by generally warm or hot temperatures year-round, though much variation exists due to altitude and other factors. (370)
either of the two times of the year when the sun is at its greatest distance from the celestial equator
the edge of a tectonic plate
the weather of a place over a period of time
all of the parts of our planet and all their interactions
The cycle through which water in the hydrosphere moves; includes such processes as evaporation, precipitation, and surface and groundwater runoff
the mass of air surrounding the Earth
the solid part of the earth consisting of the crust and outer mantle
All the water at and near the surface of the earth, 97% of which is in oceans
the regions of the surface and atmosphere of the Earth (or other planet) where living organisms exist
Cenozoic Ice Age
ice age which we are currently recovering from
Winds that blow mainly from one direction during a given peroid
a belt of calms and light winds between the northern and southern trade winds of the Atlantic and Pacific
The part of a continent that extends underwater
either of two times of the year when the sun crosses the plane of the earth's equator and day and night are of equal length
the precipitation that occors when moist air rises up the sides of a mountain. as the air rises, it cools down and realeases most of its moisture as rain or snow
rate of temp. drop as elevation increases
for every 1000 ft the air temeprature cools 3.6 degrees F
large wind that brings rain
Permanently frozen layer of soil
the development of industry on an extensive scale
addition of water vapor to the atmosphere by evaporation from Earth's surface or from plant leaves
the process by which water evaporates from a plant's leaves
a ridge of land that separates two adjacent river systems
the wide part of a river where it nears the sea
a smooth, nearly flat region of the deep ocean floor
a low plain adjacent to a river that is formed chiefly of river sediment and is subject to flooding
a fan-shaped deposit where a fast flowing stream flattens out
flat plain of mud or sand between branches of a river