SCi 200-Unit 4 Challenge 2 rated A+ PASSED!

SCi 200-Unit 4 Challenge 2 rated A+ PASSED!Which of the following is a scientific observation that supports the idea of a warming planet? a.) Earth's climate depends on the amount of plant and animal life. b.) Earth has been warming up slower than any other historical global temperature increase. c.) Historically, the earth's climate cycles between warmer and cooler periods. d.) There have only been warmer periods throughout Earth's history. c.) Historically, the earth's climate cycles between warmer and cooler periods. Which of the following statements about the history of climate change on Earth is true? a.) Current climate change is largely due to increases in greenhouse gases in the atmosphere. b.) At the end of the last Ice Age, the global temperature was around 25 degrees cooler than it is today. c.) Changes in the Earth's atmosphere today are relatively large compared to atmospheric changes on early Earth. d.) In the past, these temperature changes have been sudden and species did not have the time to adapt. a.) Current climate change is largely due to increases in greenhouse gases in the atmosphere. Of the options below, which is used by scientists as evidence of man-made climate change? a.) The growing number of endangered species b.) The descending sea levels c.) The steep increase in the incidence and severity of skin cancer d.) The melting of glaciers and polar ice caps d.) The melting of glaciers and polar ice caps Human activities that contribute greenhouse gasses into the atmosphere include__________________. a.) using solar fuel and rural sprawl b.) burning fossil fuels and livestock grazing c.) operating with wind power fuel and suburban sprawl d.) utilizing geothermal fuel and abiotic practices b.) burning fossil fuels and livestock grazing Carbon dioxide and methane are two of the worst greenhouse gases. Which of the following statements is specific to methane? a.) Deforestation has reduced the amount of this gas that can be absorbed. b.) The burning of fossil fuels is the major human activity that leads to this gas. c.) This is the greenhouse gas that humans produce in the greatest volume. d.) Current agriculture practices increase the amount of this gas. d.) Current agriculture practices increase the amount of this gas. Which human activity does NOT contribute large amounts of greenhouse gases into the atmosphere? a.) Urban sprawl b.) Raising of livestock c.) No-till farming d.) Burning of fossil fuels c.) No-till farming Alterations in weather is a major area of concern about climate change and can result in ___________. a.) hazardous waste disposal b.) changes in infectious diseases c.) stress on household, industrial and agricultural water supplies d.) plants and animals shift their habitats c.) stress on household, industrial and agricultural water supplies Which of the following effects of climate change describes a disruption in ecological processes? a.) Increased solar radiation b.) Animal mating and blooming flowers occur earlier in the year c.) Instability in permafrost and mountainous regions d.) Reduction or changes in arable land b.) Animal mating and blooming flowers occur earlier in the year The loss of glaciers is an issue associated with climate change. Which of the following is a possible direct result of this issue? a.) Flooding in mountainous regions b.) Many inland communities will not have a water source c.) Altered agricultural practices and timing d.) Loss of coastal habitats and associated decrease in biodiversity b.) Many inland communities will not have a water source One goal of the 1997 Kyoto Protocol was to limit greenhouse gas emissions by an average of 5.2% below 1990 levels by the year __________. a.) 2002 b.) 2012 c.) 2050 d.) 2020 b.) 2012 Which of the following actions is NOT required under NEPA? a.) Name resources required for projects b.) Evaluate possible alternatives c.) Report to the public d.) Reduction of energy consumption d.) Reduction of energy consumption What does NEPA require the government to do when considering an environmental issue? a.) Report findings to the public before taking any actions b.) Forbid activities that may harm the environment c.) Identify the favorable impacts on the environment that can be avoided d.) Complete a risk assessment a.) Report findings to the public before taking any actions Which of the following statements does NOT reflect NEPA requirements? a.) List unavoidable negative impacts when considering environmental projects b.) Provide a formal Senate hearing to approve federal projects c.) Name the required resources for a proposed project d.) Consider and evaluate possible alternatives for federal projects b.) Provide a formal Senate hearing to approve federal projects Which of the following is an example of an involuntary risk? a.) An industry emits pollutants into the air and water. b.) A man burns leaves in his backyard. c.) A woman smokes her whole adult life. d.) A store owner uses toxic pesticides to get rid of flies. a.) An industry emits pollutants into the air and water. Some environmental risks are involuntary because the actions of others are causing the impact, while others are voluntary because __________. a.) there are multiple impacts b.) there is no impact c.) others are causing the impact d.) the individual is causing the impact d.) the individual is causing the impact Environmental risks can be categorized by who is responsible for causing them. In general, the public is more concerned with involuntary risks because __________. a.) the individual makes personal decisions they can control b.) other people's actions are causing the impact c.) there are multiple impacts on the environment d.) there is no known impact on the environment b.) other people's actions are causing the impact The careful use of natural resources is a sustainability factor. Which of the following actions is an example of this in practice? a.) A company's green building strategy includes utilizing low-flow water valves. b.) A company's expansion requires the clearing of woodland acres for building. c.) A company provides a forum for people to exchange and reuse goods. d.) A company offers solutions for cities coping with rapid urban growth. a.) A company's green building strategy includes utilizing low-flow water valves. Which of the following actions addresses the consideration of population issues as a focus of sustainability? a.) Mary tests the soil in an abandoned lot to see if it is suitable for a community garden. b.) A farmer selects crops that will grow well in his region so that he does not have to use fertilizer. c.) John takes the bus to and from work four days and has convinced his boss to let him work from home on the fifth day. d.) A city planner recommends setting land use policies that place limitations on types of development on the outskirts of the city. d.) A city planner recommends setting land use policies that place limitations on types of development on the outskirts of the city. Choose the action that is associated with the sustainability factor of reducing waste. a.) Bruce's company powers its facilities with renewable energy sources. b.) Jocelyn's company uses recycled office products. c.) Tom's company provides education and contraception to women in developing countries. d.) Michelle's company promotes local businesses and farming. b.) Jocelyn's company uses recycled office products.