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PCS Liv Env
Vocabulary for Topic 7 - Human Impact on Ecosystems
| Term | Definition |
|---|---|
| Carrying Capacity | the largest population of any single species that survives by eating animals |
| Deforestation | forest destruction that results from human activity |
| Direct Harvesting | the destruction of an organism, or the removal of an organism from its habitat |
| Energy Flow | the movement of energy through an ecosystem |
| Fossil Fuel | a fuel, such as coal and gas, that comes form the remains of organisms that lived millions of years ago |
| Global Warming | an increase in Earth's average surface temperature caused by an increase in greenhouse gases |
| Industrialization | the process of converting an economy into one in which large-scale manufacturing is the primary economic base |
| Nonrenewable Resource | any resource, such as fossil fuels and minerals, that cannot be replaced |
| Nuclear Fuel | an energy source that results form splitting atoms |
| Ozone Shield | the layer of ozone gas in the upper atmosphere that protects Earth from some of the sun's radiation |
| Pollution | a harmful change in the chemical make-up of the soil, water, or air |
| Renewable Resource | Earth's resources, such as our food supply and solar energy, which can be replaced |
| Technology | all of the practical scientific knowledge that has been used to meet human needs |
| Trade-Off | an exchange or agreement made to reach a compromise |
| Water Cycle | the process by which water continuously moves from Earth's surface to the atmosphere and back |
Created by:
Ms.Sala
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