SCI 200--Final Milestone Unit 4 questions with complete solutions 2023

SCI 200--Final Milestone Unit 4 questions with complete solutions 2023Which of the following describes a natural source of air pollution? During their vacation, Jim and his family drove their car through several national parks. Diesel exhaust from idling school buses is a concern for some parents. Oil refineries on the Gulf Coast release benzene and other volatile organic compounds into the atmosphere. A dust storm in 1983 dumped 1,000 pounds of topsoil onto the city of Melbourne, Australia. A dust storm in 1983 dumped 1,000 pounds of topsoil onto the city of Melbourne, Australia. Which of the following statements is true considering the future of living resources on Earth? It is inherently difficult for scientists to predict long-term environmental impacts. The overexploitation of plant and animal species has been largely corrected. Few of the large mammals on Earth are threatened, but many birds and reptiles are. Technology has already been developed that will help scientists mitigate future concerns. It is inherently difficult for scientists to predict long-term environmental impacts. Benefits of the National Environmental Policy Act (NEPA) include all of the following EXCEPT that __________. decision-makers receive pertinent information before a decision is made business and industry are allowed to self-regulate chances of a project causing environmental harm are reduced public awareness and oversight business and industry are allowed to self-regulate Which statement about the Clean Air Act is FALSE? Lead was added to the list of pollutants under the Clean Air Act in 1987. The Clean Air Act requires the Environmental Protection Agency to list dangerous pollutants. The Clean Air Act sets limits for both stationary and mobile sources of air pollution. Smog is one of the air pollutants listed under the original Clean Air Act in 1970. Smog is one of the air pollutants listed under the original Clean Air Act in 1970. Choose the statement about renewable and nonrenewable energy sources that is NOT true. There has been little to no recent growth in renewable energy use due to a lack of environmental concerns with the use of fossil fuels. Most nonrenewable energy sources can be renewed, but it takes thousands to millions of years for them to form. New technologies promise future increases in the use of renewable energy sources. Renewable energy creates little or no waste and has few negative environmental impacts. There has been little to no recent growth in renewable energy use due to a lack of environmental concerns with the use of fossil fuels. Efforts to protect the environment are part of the sustainability movement. Choose the item that is NOT a goal for sustaining the environment. Creating buffer zones where development cannot occur Improving access to clean drinking water Adjusting crop variety and planting seasons Considering climate change issues when building roads Improving access to clean drinking water The U.S. policy toward energy supply and demand has included all of the following EXCEPT __________. preventing the free market from determining which energy sources to use providing subsidies for oil seeking to increase fuel supplies adopting some policies to reduce energy demands preventing the free market from determining which energy sources to use The planet has always had hot and cold ages, but what's different about this global warming is that it is __________. directly linked to increases in air and water pollution having a significant impact on the extinction of species occurring faster than any recorded temperature increase in history proven to be a result of human activities occurring faster than any recorded temperature increase in history Which of the following is the least effective action individuals and families can take to protect the environment? Educating themselves on community and global environmental issues Monitoring and enforcing regulations Limiting the number of children they have Choosing products and services from green companies Monitoring and enforcing regulations Select the energy source that is renewable. Atoms of uranium are split to produce nuclear energy. Reservoirs release water to flow through pipes and spin turbines that produce electricity. Oil is burned to produce steam that is used to generate electricity for power plants. Power plants convert coal into steam to produce electricity. Reservoirs release water to flow through pipes and spin turbines that produce electricity. Although nuclear energy is not based on fossil fuels, why is it considered a non-renewable energy source? It is not a process that occurs naturally on the planet. It is dependent on a limited, mined mineral. It takes hundreds to thousands of years to break down its byproducts. It can only be used for brief periods of time without causing environmental damage. It is dependent on a limited, mined mineral. All human impacts on the environment, such as the depletion of natural resources, are significantly worsened by __________. climate change air and water pollution agricultural practices human population growth human population growth Which effect of climate change will have a negative impact on human health? Infectious microbes spread into places where they were previously absent. Warming temperatures disrupt the growing season and crop planting. Temperate forests experience a net loss in biodiversity. Unexpected flooding or droughts bring new challenges to food producers. Infectious microbes spread into places where they were previously absent. An increase in __________ in the atmosphere leads to increased global temperatures. carbon dioxide nitrogen argon oxygen carbon dioxide