Glossary Terms Flashcards
Bioaccumulation
The accumulation of substances such as pesticides in an organism
Biodiversity
The variety of all life forms: plants, animals and microorganisms; the genes they contain; the ecosystems of which they form a part; and the processes that link them.
Biosphere
All the life forms and environments on or near Earth’s surface that are capable of sustaining life.
Carbon Cycle
The naturally occurring processes in which carbon is exchanged between organisms and the environment.
Desertification
The expansion of deserts due to overgrazing, soil erosion, climate change or prolonged drought.
Ecological
The relationship between living things (including people) and their physical environment.
Ecological Footprint
The measure of human demands on the Earth’s ecosystems.
Environment
The totality of our surrounding.
Extinct (species)
A species of animal or plant that no longer exists.
Fossil Fuels
A natural fuel such as coal or gas, formed in the geological past from the remains of living organisms.
Global Warming
The gradual rise in average temperatures brought about by an increase in the heat-absorbing gases present in the atmosphere.
Greenhouse Effect
The atmospheric processes that maintain an average surface temperature of 15 degrees Celcius.
Habitat
The physical environment in which a community of plants and animals lives.
Land Degradation
The downgrading of the productive capacity of the land due to the activities of people.
Pollution
The release of any hazardous, or potentially hazardous, substance into the environment.
Poverty
The inability to meet the basic needs for food, clothing and shelter; the absence of money, goods or the means of subsistence.