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Enviro science
Fundemental issues in enviro science
| Question | Answer |
|---|---|
| What is biosphere | The planetary system that includes and sustains life and therefore is made up of the atmosphere,oceans, soils, upper bedrock, and all life |
| What is biosphere second meaning | Part of the planet where life exists. On earth it extends from the depths of the ocean to the summit of the mountains, but most exists within a few meters of the surface. |
| What is biota | A general term that refers to all living things |
| What is carrying capacity | The maximum number of individuals of a species that can be sustained by an environment without lessening the environment's ability to sustain that same number in the future |
| What is doubling time | The time it takes for what is growing to double in size or number it depends on the rate of growth |
| What is dynamic equilibrium | An equilibrium is a condition of consistency for a system aka "real state" it changes somewhat and slowly over time |
| What is ecological footprint | the total area each person requires based on the resources we use and what we produce |
| What is ecosystem | A community of organisms and that community's local nonliving environment in which matter (chemical elements) cycles and energy flows. |
| What is environmental unity | everything affect everything else |
| What is exponential growth | Growth in which the rate of increase is constant percentage of the current size; that is , the growth occurs at a constant rate per time period |
| What is feedback | A kind of system response that occurs when output of the system also serves as input leading to changes in the system |
| What is the Gaia hypothesis | it proposes that the environment at a global level has been profoundly changed by life throughout the history of life on earth and that things will improve the chances life will continue |
| What is overshoot | When carrying capacity is exceeded |
| What is precautionary principle | we should not wait until there is scientific proof to take precautionary cost effective steps to prevent potential harm to the environment |
| What is steady state | When input equals output in a system |
| What is sustainability | Management of natural resources and the environment with the goals of allowing the harvest of resources to remain at or above some specified level and the ecosystem to retain its function and structure |
| What is a system | a set of parts that function together as a whole |
Created by:
martinezle1
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