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APES Unit 5
| Question | Answer |
|---|---|
| What are the positives of soil tilling? | It preps the soil for farming and loosens it for water and such to flow through. |
| What are the negatives of soil tilling? | Causes soil erosion, eventually depleting the soil of its fertility and allowing it to runoff into bodies of water. |
| What are the negatives impacts of fertilizer? | Cultural eutrophication and polluted water through runoff. |
| What are global health issues related to access to freshwater? | Many are dying from water-born diseases. |
| What are economic issues related to access to freshwater? | Not enough water to grow crops and provide everyone worldwide. |
| What are global security issues related to access to freshwater? | Tension caused by competition over water. |
| What are environmental issues related to access to freshwater? | Excessive withdrawal of freshwater is shrinking water tables. |
| How is the water cycle disturbed? | By pollution, excess water withdrawal, and climate change. Wet places are getting wetter and dry places are getting drier. |
| What are the consequences of over pumping aquifers? | Limits food production, high food prices, land subsidence, and widening gaps between the rich and poor. |
| What are some alternatives to pesticide use? | Fooling the pest, provide homes for the pests, implant genetic resistance, bring in natural predators. |
| What are some damaging modern farming practices or consequences? | Tilling, slash and burn, fertilizer overuse, pesticides (kill good insects), fossil fuel run machinery, soil salinization, desertification, depletion of groundwater, and the breakdown of traditional farms. |
| What are the three main grains? | Rice, wheat, and corn. |
| What are some positives of the Green Revolution? | GMOs, fertilizers, pesticides, and advanced irrigation produce higher crop yields and machinery allows for more efficient farming. |
| What percent of the US is obese? | 41.9% |
| What are the positives of GMOs? | higher crops yields, fend of insects, and some are drought resistant. |
| What are the negatives of GMOs? | Could threaten human health and loss of natural biodiversity. |
| What are the positives of pesticides? | Save lives by disease prevention, higher crop yields --> increased profits, and most are safe. |
| What are the negatives of pesticides? | Accelerate resistance, costly, kill other predators, often applied inefficiently. |
| What happened in Somalia in 1993? | American forces helped distribute food. US thought they would easily detain Aidid Mohammad who was stealing and selling this food for profit. They ended up trapped overnight unprepared. |
| Where is the global seed vault? | Svalbard, Norway |
| What is kenaf? | A possible fas growing, paper alternative to reduce deforestation. |
| What are some solutions to reduce clearcutting? | Creating small, fast growing alternatives for fuelwood trees, burning wood efficiently, solar or wind energy, and burning garden waste. |
| How can we regulate the commons? | Laws, privatization, and education. |
| What are some examples of common areas being abused? | Oceans--> pollution and overfishing Air-->pollution Freshwater-->overuse and pollution Animals--> overhunting Management--> subsidies and BLM |
| What are some ecosystem services provided by forests? | Stores carbon, provides habitats, influence climate, provides raw materials, and house some plants used for medicines. |
| How have we worked to increase global forest cover? | Reforestation and tree plantations. |
| What are some ways to reduce deforestation? | Reduce waste of forest derived materials and using tree-free paper. |
| What approach is commonly used to combat overfishing? | Reducing the limits on the numbers of commercial fish species that can be caught. |
| What industrial practice contributes to the tragedy of the commons? | Burning fossil fuels for energy production. |
| If most of the trees along a stream had been removed, what water quality would change? | Increased water temperature. |
| What direct economic consequence would likely occur if an area of forest was clear-cut so that a housing development can be built? | Decreased number of game hunting licenses purchased. |
| What would be the most prominent effect of the clear cutting of a forest? | Increased amount of CO2 released-->Climate change |
| What damage is caused by slash and burn agriculture? | Reduced soil fertility, eventually unuseable for farming. |
| What's a natural alternative to fertilizers? | Recycling of organic matter. |
| What are the effects of tilling? | Soil degradation and erosion. |
| Why are our aquifers depleting? | We are using freshwater sources faster than they can naturally replenish. |
| What are the negative consequences of waterlogging? | Higher water tables --> Flooding |
| The growing of what foods have the highest carbon footprint? Lowest? | Beef--> Highest // Seafood // Pork // Seafood // Poultry // Bean and Soy |
| What are the advantages and disadvantages of drip irrigation? | This method most efficiently delivers water directly to plant roots compared with other methods, and wastes less water, but it may be too costly for farmers in developing countries to use. |
Created by:
MadisonFoleyReis
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