<p>hey guys so what are the environmental impacts of tsunamis?? besides coral reefs/ habitat destruction. does it cause more diseases or w/e ? like el nino</p>
<p>what are all the resources we have? i know we all should have the audit and 03 exam (which was sooo dumb btw…) </p>
<p>does anyone have some sick online resources? i’d really like the full smartypants book. or maybe something with all the equations we’ll need.</p>
<p>i dont have the audit and 03 >< can i get it. i have a sheet with all the formulas :/</p>
<p>hey guys i thought actual growth rate was birth rate-death rate. but accordeing to pr it says you needa divide that by 10 O_O. Why do u needa do that</p>
<p>what are some of the forumlas we need to know?</p>
<p>does anyone know the raw score for a 4 on this exam??</p>
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<p>Crude birth rate and crude death rate is by the thousands (of people). So if a state/country/ecosystem’s crude birth rate is 14 and the crude death rate is 7, that means 14 people per thousand are born and 7 people per thousand die. So the actual growth rate is really 0.7% (since percentages are out of a hundred), not 7% (14 - 7).</p>
<p>Some questions other have asked earlier:
- I still don’t get El Nino/La Nina very well;
- Are laws or acts important to know? I know they’re important at the very least for mentioning in FRQs, but what about MC, and will there be any specific FRQ questions on them?</p>
<p>I’m self-studing for the exam, so I read the REA and the PR book and took exams in both. The PR says you need a composite score of a 91 for a 5 but both exams were very easy. However, the REA says that you need only a 70-90 for a 5 but the exams were really random and moderately difficult. Does anyone know which grading scale is correct or even which exam is more realistic?</p>
<p>What are some pros/cons of landfills? What are some sustainable alternatives to modern-style landfills?</p>
<p>The PR grading scale is the realistic one. That was taken straight from the collegeboard’s information, I believe.</p>
<p>^^can someone post that scale??</p>
<p>yeah could you post that puggly?</p>
<p>does anyone have a copy of the 08 exam? (not the audit)</p>
<p>The PR actually doesn’t give you the scale, it pretty much just says in the opening chapters that you needed 91/150 for a 5. Then it gave a hypothetical example of a student who got a 3 with only 61 raw points. Let me go get my book and I’ll quote it.</p>
<p>Awesome! Does anyone know which exam is more realistic? Both of the PR ones were so much easier than the first practice exam I took in the REA.</p>
<p>Besides the rule of 70, what other math oriented things do we need to know? i’m currently self-studying and PR doesn’t cover much math.</p>
<p>Excerpts word for word from Princeton Review: </p>
<p>…ETS adds up the total composite scores for both sections and converts their sum into a simple, single-digit grade, from 1-5 (and the range between 91 and 150 = 5)…</p>
<p>…For the year Joe took this AP Environmental Science Exam (2006) a score of 60 would have translated to a grade of 3…</p>
<p>That’s it for score ranges. My estimate is that since about a 60 is a 3 and about a 90 is a 5, a 75/150 should be a 4.</p>
<p>dannav147- Know how to do long division well, and possibly graph data. I’m a little nervous for this part of the test. </p>
<p>APFreak1005- I don’t know about REA, but PR seems a little like some of the questions I’ve seen from actual AP exams. Some of the actual AP multiple choice questions are very random though. Like they’ll have questions on exact %'s, which hardly anyone knows.</p>
<p>ya i saw the 2002 mc test i think and it had like A B C D E percentages and it asked like how much of the energy is transfered into heat for an incandescnet lightbulb produce or what is efficiency of coal powered plant ><
formulas: rule of 70, half-life, I= PAT (Maybe?) ,</p>
<p>Ya, I would say that’s it for formulas. MAN I better get a 5.</p>
<p>incandescent lightbulb -> heat = 95%</p>
<p>efficiency of a coal powered plant = 30%</p>
<p>efficiency of conversion of light energy to chemical energy in photosynthesis = 1%</p>
<p>total possible energy blabla if there’s not second law of thermodyn. = 100%</p>
<p>I got them all right. I was so proud of myself :)</p>
<p>Good! The PR practice tests were ten times easier than the REA, so I’ve been doing a ton of cramming. Does anyone know a good website for memorizing the different parts of a nuclear power plant?</p>