The endangered species act is a last-ditch effort to preserve a species from extinction. Ecosystem conservation attempts to focus on both biotic and abiotic factors in the environment. The seasons are caused by the tilt of the earth. There are more terrestrial symbiotic associations in the Amazon Basin than in the Pacific Northwest. The fluctuations in lemming populations are closely linked to the carbon cycle.
Cold air can hold more water vapor than warm air.
Answer FIVE of the following questions. Be sure to indicate question number for each answer. Describe global warming and ozone layer depletion. This results in a greenhouse effect. Ozone depletion is the reduction of ozone layer due either directly or indirectly to CFC's and other chemical pollutants.