<p>Whoops, typo. Meant LD-50, yeah.</p>
<p>Tertiary treatment…</p>
<p>Well, effluent from secondary treatment basically goes through yet another round of cleaning, this time to treat specifics that primary and secondary treatments miss. This includes alum flocculation - adding alum blobs to force settling of small particles, desalination, and chlorination. I don’t know if that helps, haha…</p>
<p>High pressure is when a mass of cool air descends, exerting, well, pressure. Low pressure is when a mass of warm air rises.</p>
<p>of course tht helps. thanks (:
questions pls (:</p>
<p>Q: describe the effects of El Nino in America.</p>
<p>Oh, sorry!</p>
<p>Q: What are the two types of temperature inversions, and how do they form?</p>
<p>El Nino brings more precipitation to the Gulf Coast and California… I don’t know what else to say.</p>
<p>temperature inversions…not sure about this, is it that temperature rises as altitute rises:S? dk TT pls explain kk </p>
<p>Q: describe the effects of El Nino in America.</p>
<p>oops uve already answers…
ok El niono; trade winds weaken and warm water sloched back to SouthernAmerica. </p>
<p>and the upwelling decreases disrupting food chains, North US has mild winters, SW US has increased rainfall, less atlantic hurricanes</p>
<p>Q: what are some stratgies the plants and animals use to save water in desert?</p>
<p>Temperature inversions happen when a layer of warm air is trapped beneath a layer of cooler air. Subsidence inversions happen when a large mass of warm air slides under a mass of cool air. Radiation temperature inversions happen when the ground cools faster than the air above.</p>
<p>Strategies include humps, being nocturnal or crepuscular, needles instead of leaves, and thick outer layers for plants</p>
<p>Q: Differentiate between bioaccumulation and biomagnification.</p>
<p>Q: what are some human impacts on desert?</p>
<p>i thoguht they are the same thing…
bioaccumulation and biomagnification is both saying that toxic substance(such as mercury) gets bigger and more through foodchain.
correct me if im wrong! :(</p>
<p>Forced agricultural development leads to loss of desert lands, compaction reduces soil permeability so it can’t hold water when it does rain.</p>
<p>Bioaccumulation is when a toxin builds up - that is, things that aren’t passed out, and build up over time, like mercury.</p>
<p>Biomagnification is when the effects of bioaccumulation are magnified up a food chain - a mouse has a higher concentration of toxins than the background because of bioaccumulation, but an eagle is even more effected because the mice it eats are already high in toxicity.</p>
<p>Q: What are some problems with ethanol?</p>
<p>give one indictor species ane explain why it is one.
give one keystonr species and explain whhy it is one.</p>
<p>Ethanol is extracted from plants (such as corn), so it reduces food supply for people since farmers rather plant corns for ethanol to get more money; deforestation caz we need more space to plant corns, thus leads to soil erosion, global warming. also, food price would go up so more people might starve.</p>
<p>(lets do this faster pls (: )</p>
<p>BTW i hav a question…
when we write the FRQ, can we write in inserts? from what i saw on the ap packet, we can’t…but waht if we want to add somethihg =(</p>
<p>If you smoke $300 worth of weed, describe the net economic and environmental impact.
b) Discuss how this affects greenhouse gasses?
c) How might this activity be modified to a more sustainable basis?
d) Name at LEAST two laws that this activity violates, and describe how they apply to the situation.</p>
<p>You can write in the inserts - the problem is nobody will read them.</p>
<p>They should provide extra paper…</p>
<p>And what we write in the inserts does not count. Really, though, no one should end up with that much if they know what they’re talking about.</p>
<p>I’m sorry for the slowness, but I keep falling asleep in the middle. I think I’m gonna have to head off to bed. ._.</p>