Toward a Sustainable Future ch. 5-9 Flashcards
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| 416559019 | Younger Dryas event | a rapid change in global climate that brought 1,500 years of cold weather about 10,000 to 12,000 years ago | |
| 416559020 | pollution | the presence of a substance in the environment that prevents the functioning of natural processess and produces undesirable environmental and health effects | |
| 416559021 | crude death rate (CDR) | the number of deaths per 1,000 individuals per year | |
| 416559022 | natural laws | generalizations derived from our observations of matter, energy, and other phenomena | |
| 416559023 | omnivores | an animal that feeds on both plant material and other animals | |
| 416559024 | sustainable agriculture | agriculture that maintains the integrity of soil and water resources such that it can be continued indefinitely | |
| 416559025 | fire climax ecosystems | ecosystems that depend on the recurrence of fire to maintain the existing balance | |
| 416559026 | chlorophyll | the green pigment in plants responsible for absorbing the light energy required for photosynthesis | |
| 416559027 | cellulose | the organic macromolecule that is the main part of a plant's cell walls | |
| 416793094 | biomass pyramid | the structure that is obtained when the respective biomasses of producers, herbivores and carnivores in an ecosystem are compared. Producers have the largest biomass, followed by herbivores and then carnivores |