An effective way to reduce future atmos- pheric warming would be to . reduce international trade protect tropical rainforests and help them to regrow
... [Show More] document all of the biodiversity in areas prior to development tightly regulate economic growth reduce infectious diseases spread by animals All physical forms of water (solid, liquid, and gas) on or near the earth's surface make up the . atmosphere lithosphere biosphere hydrosphere troposphere Energy from the sun is constantly . increasing in quality being recycled being destroyed becoming matter supporting plant growth Ozone gas in the lower part of the stratosphere filters out much of the sun's radiation. long-wave microwave infrared gamma ultraviolet protect tropical rainforests and help them to regrow hydrosphere supporting plant growth ultraviolet Fossil fuels and minerals are found in the . term-34 troposphere atmosphere hydrosphere geosphere biosphere The chemical cycling principle of sus- tainability is driven by . primary producers detritivores decomposers the sun human activities Humans can consume a wide variety of plants and animals, so they connect to multiple other organisms in a . trophic pyramid food chain trophic level food web nutrient cycle Which of the following is an abiotic com- ponent of an ecosystem? Nutrients Microbes Autotrophs Heterotrophs Tertiary consumers Humans consume a variety of plant and animal species, making them . carnivores omnivores geosphere the sun food web Nutrients omnivores detritivores herbivores decomposers The necessary process of breaking down the dead bodies of organisms is a function of . detritivores omnivores carnivores herbivores producers All living things are made up of units called , which are not found in ma- terials that have never been alive. atoms molecules compounds cells mitochondria Each trophic level in a food chain or food web contains a certain amount of organ- ic matter, called . food energy biomass organisms decomposition Which terrestrial ecosystem or life zone produces the highest net primary pro- ductivity per year? Temperate forest Savanna Tundra detritivores cells biomass Swamps and marshes Swamps and marshes Extreme desert If grass stores 1,000 energy units re- ceived from the sun, the ecological ef- ficiency of the ecosystem is 10%, and the trophic levels are grass ’ cow ’ human, then how many units of energy does the human receive of the original 1,000 units? 900 200 100 10 1 What is one way that a large amount of runoff could cause a body of water to reach a tipping point? -Nitrogen may be swept away, resulting in a deficiency. -Water running through rocks may carry excess phosphate into the water. -Water running across soil may carry ex- cess carbon dioxide into the water. -Phosphate may be swept away, result- ing in a deficiency. Carbon may be swept away, resulting in a deficiency. Barry Commoner coined the First Law of Ecology: "Everything is connected to everything else" in 1971. Which example best illustrates this law? Biogeochemical cycles Gross primary productivity Net primary productivity 10 Water running through rocks may carry excess phosphate into the water. Biogeochemical cycles Tropical rainforest Natural capital The hydrologic cycle is driven primarily by . solar energy lunar tides solar tides mechanical energy chemical energy Humans intervene in the nitrogen cycle in several ways. Which of the following is one of these? Burning fossil fuels adds nitric oxide. Agriculture decreases the production of nitrous oxides. Protecting and replanting forests releas- es nitrogen. Harvesting nitrogen-rich crops stores ni- trogen in the topsoil. Agriculture with fertilizers uses nitrogen in the aquatic systems. Humans add to fertilizer because it is used by plants to produce various amino acids, proteins, nucleic acids, and vitamins. N2 CO2 SO42- phosphorus NO3- To most effectively study how animals divide up territories in a forest, scientists would use . remote sensing solar energy Burning fossil fuels adds nitric oxide. NO3- field research satellite data laboratory research mathematical models field research The use of transmitters and GPS sys- tems is very important in the study of . alterations in the water cycle acid rain environmental degradation volcanic activity endangered species Populations of different species living in a particular place, and potentially inter- acting with each other, form a(n) . community population ecosystem biosphere Extensive destruction of rain forest habi- tat can lead to a tipping point that caus- es a change in the weather, which can make it impossible to restore the forest. True False While the troposphere is 19 kilometers [Show Less]