34. What relatively recent development is greatly impacting the carbon cycle?A. PhotosynthesisB. Cellular RespirationC. Formation of fossil fuelsD. Combustion of fossil fuels E. Formation of carbonate rocksANS: DDIF: EMSC: Fact basedKey Idea: Discuss how carbon, nitrogen, and phosphorus cycle within ecosystems.35. What is a possible result of an increased amount of CO2in the atmosphere?
36. What impact does deforestation have on the carbon cycle?37. Which element is the most abundant in the atmosphere?38. What group of organisms is primarily responsible for the processes that occur in the nitrogen cycle?A. AutotrophsB. HeterotrophsC. Bacteria D. DetritovoresE. ScavengersANS: CDIF: MMSC: Fact basedKey Idea: Discuss how carbon, nitrogen, and phosphorus cycle within ecosystems.39. In what ways have humans had an effect on the Nitrogen cycle?I. Use of fertilizersII. Combustion of fossil fuelsIII. Urbanization
40. When nutrients are transported through soil with water, this process is known as41. A scientist is observing a series of plants and measuring their growth with the additionof nutrients. She notices that the addition of nitrate has no effect on the growth while the addition of phosphorus shows significant growth. What conclusion can she draw about the nutrients in relation to this plant?
- Fall '16
- Donna Kashian
- Ecology, NAR