ESCI 101 Exam 1 Questions with Correct Answers Latest Update 2025 Graded A+

ESCI 101 Exam 1 Questions with Correct Answers Latest Update 2025 Graded A+ Tragedy of the commons - Answers When we don't think about the stability of the ecological commons. Ecological commons - Answers Grazing land Fisheries Game animals Timber National Parks Water Air Solutions to the tragedy of the commons - Answers 1. Economic (taxes, incentives, penalties) 2. Moral (appeal to conscious) 2. Population control (control) 3. Legislative (mutual coercion) 4. Privatization Ecosystem Goods and Services: Provisioning Services (products obtained from ecosystems) - Answers 1. Food 2. Fresh water 3. Fuel 4. Fiber 5. Biochemical 6. Genetic resources Ecosystem Goods and Services: Regulating Services (benefits obtained from regulation of ecosystem processes) - Answers 1. Climate regulation 2. Disease regulation 3. Water regulation 4. Water purification 5. Pollination Ecosystem Goods and Services: Cultural Services (nonmaterial benefits obtained from ecosystems) - Answers 1. Spiritual and religious 2. Recreation and Ecotourism 3. Aesthetic 4. Educational 5. Sense of place 6. Cultural heritage Ecosystem Goods and Services: Supporting Services (services necessary for the production of all other ecosystem services) - Answers 1. Soil formation 2. Nutrient cycling 3. Primary production Curent Value of National Capital in Puget Sound - Answers 61.7 billion dollars per year Problems of Quantifying Natural System Value - Answers 1. Most valuable products and natural systems have no commercial value for private land owner 2. Commercial values are finite, natural systems provide value in perpetuity 3. Estimates of value are inherently biased 4. Ecological value depends upon its context in the landscape 5. Ecosystems are multiple value systems Netherlands Fallacy - Answers To look at a densely populated place that is functioning well and think we can all live like that. When the only reason that place is functioning well is because they are importing all of their resources (large ecological footprint). World Population - Answers 7 billion (J shaped curve) 7.8 billion by 2025 Rate of Growth - Answers r=b-d Current World Growth Rate - Answers 0.01/year or 1.1% Exponential Population Growth - Answers A population increases in proportion to its size. Doubling time - Answers 70/population growth rate 9) Vertical accretion (to counteract sea level rise) of sediments in the Mississippi River Delta comes from A. Plant growth contributing organic matter to the soils. B. Mineral sediments from the Mississippi River itself. C. All of the above. D. None of the above.