APES Worksheet over Chapters 1-2
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Environmental Science
Forum reference:
Book page:
http://course-notes.org/Environmental_Science
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Genetically Modified Foods
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One of the most argued reasons in favor of GM foods is that without them the world will not be able to feed its growing population. It has been estimated that almost a billion people are going hungry since 2008. The fact is, the world produces enough food for each person to consume 3,000 calories every day. This doesn’t include the food that goes toward feeding livestock, producing ethanol, and other necessities to provide for human needs. Many people would argue that the large food supply is because GM food crops have been successful in increasing the average yields. The opposite was found in the 2008 report from the United Nations International Assessment of Agricultural Knowledge, Science and Technology for Development (IAASTD).
Environmental Worldviews
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Statistics-Chi-squared in APES
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Ch16 Nonrenewable Energy IDs
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Chapter 16 Reading Guideline, 15th Edition Nonrenewable Energy Identify the following. Be as specific as possible, and include names, dates, and relevant facts as appropriate. Be sure to explain the significance of the term. Case Study: How long will the oil last? 1. How long do we have?: We are expected to have enough oil to last until 2050 and 2100, depending on how much we use oil and how much of the population we need to find more oil for.
APES outline
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Energy Sources
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Energy Sources Advantages Disadvantages Coal most abundant source of energy inexpensive compared to other fossil fuels versatile, used for recreational activities reliable electricity, not dependent on weather safely stored transporting coal easier than oil reduces dependence on oil nonrenewable largest source of carbon emissions burning coal emits harmful wastes burning of coal leads to acid rain in some areas expensive to clean mining, ruins landscape mining, dangerous and health issues for miners mining, noise pollution, affects regional wildlife extensive transportation system, and emissions from transport vehicles limited stocks of coal remaining Natural Gas more environmentally friendly than coal and oil, cleaner 70% less CO2 emissions than other fossil fuels cheap
Controlling Pests
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Pesticide: anything that kills pest. (pest are things that are not wanted)
*Used in agriculture, food storage, shipping, home use, water purification, preservatives and more.
Types of Pesticides:
- Biocide: Kills many things, most broad spectrum.
- Herbicide: Kills plants, mostly weeds.
- Insecticide: Kills insects.
- Fungicide: Kills fungus, most dangerous!
- Acaricide: Kills arachnids (8-legged) ex: spiders, ticks, mites.
- Nematicide: Kills nematodes/roundworms - most are parasites.
- Rodenticide: Kills rodents.
- Avicide: Kills birds.
Types - based on chemical structure:
- Inorganic: Usually has poisonous elements like Arsenic.
- Natural Organic: Natural toxins from animals or plants.
- Fumigants: Small Carbon-compounds (gaseous form).
AP Test Outline
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biogeochemical cycles
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Pages
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