Term
| The erosion of rock by the action of wind and rain is an example of? |
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Definition
| The atmosphere and hydrosphere affecting the lithosphere. |
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Term
| One example of the negative impact oh human activity on the lithosphere is? |
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Definition
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| If you wanted to research the effects of chlorofluorocarbons on the atmospheric ozone layer, your laboratory control experiment would? |
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Definition
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Term
| Atmospheric changes may result in long-term changes in the hydrosphere such as? |
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Definition
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Term
| The health of an ecosystem is measured by its? |
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Definition
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Term
| A more stable ecosystem has a more complex food web than a less stable ecosystem because? |
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Definition
| It contains more species. |
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| All organisms that are not heterotrophs are? |
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Definition
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Term
| Due to biological magnification, pesticides will most seriously affect organisms? |
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Definition
| at the highest trophic level. |
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Term
| As long-term biotic and abiotic conditions change, species respond by? |
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Definition
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| Experts warn that exponential growth of human populations will one day cease due to? |
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Definition
| Earth's carrying capcity. |
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Term
| Population size for many animal species within an ecosystem is determined by |
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Definition
| predator/prey relationships. |
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Term
| Prairie fires maintain the ecosystem by? |
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Definition
| preventing succession to forest. |
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Term
| Organisms are adapted to temperature and rainfall conditions, and, along with these conditions, define the broad category of? |
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Definition
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Term
| The constant pressure of human disturbance distroys ecosystems because it? |
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Definition
| disrupts the conditions that sustain balance. |
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Term
| Toxic wastes in landfills wash into groundwater through the process of? |
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Definition
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Term
| Human overexploitation of resources in semiarid regions usually results in? |
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Definition
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Term
| The harsh conditions of the tundra have led many of its animal species to adapt by? |
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Definition
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Term
| Many of the world's grasslands have been destroyed by? |
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Definition
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Term
| Sod-forming grasses are the key to the fertility of grasslands because they form? |
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Definition
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Term
| The city of Nome, Alaska, is many kilometers from the nearest tree. This tree is probably? |
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Definition
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Term
| Deciduous are like rain forest in that.... |
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Definition
| the tallest trees form the canopy. |
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Term
| If Earth's rain forests are destroyed, the most devasting environmental impact will be the loss of? |
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Definition
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Term
| The organims that form the bottom levels of the aquatic food chain are called |
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Definition
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Term
| Human alteration of stream flow most signifcantly disrupts? |
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Definition
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Term
| Pollution of estuaries will have the most serious negative effect on |
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Definition
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Term
| What aspect of the marine biome affects global weather patterns? |
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Definition
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