Quiz #2 Chat 10-28-10

Quiz #2 Chat 10-28-10 - Online Q&A for Quiz #2 – from...

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Unformatted text preview: Online Q&A for Quiz #2 – from October 28, 2010 Hakima Hafizi: prof, murck, can u please explain how divergent plate boundaries work 28-Oct-2010 4:03:11 EDT PM Barbara Murck: yes 28-Oct-2010 4:03:16 EDT PM Barbara Murck: so divergent means "moving apart from each other" 28-Oct-2010 4:03:25 EDT PM Barbara Murck: along a divergent boundary, two plates move apart 28-Oct-2010 4:03:33 EDT PM [ Lucia Salvati joined the session] 28-Oct-2010 4:03:38 EDT PM Barbara Murck: so you could have an oceanic plate that splits and the two halves move apart 28-Oct-2010 4:03:47 EDT PM Barbara Murck: or you could have a continental plate that splits and the two halves move apart 28-Oct-2010 4:04:00 EDT PM Barbara Murck: in either case, the plate basically "cracks" or rifts 28-Oct-2010 4:04:15 EDT PM [ Sharmiya Thevabalan joined the session] 28-Oct-2010 4:04:21 EDT PM Barbara Murck: so it forms usually a "rift valley" 28-Oct-2010 4:04:23 EDT PM Barbara Murck: and lava wells up into the crack so new crust is being formed 28-Oct- 2010 4:04:35 EDT PM Barbara Murck: in an oceanic rift, the ocean gets wider and wider 28-Oct-2010 4:04:44 EDT PM Barbara Murck: in a continental rift, like the East African rift, it makes a long, narrow valley 28-Oct-2010 4:05:00 EDT PM Barbara Murck: if the valley continues to widen, it will fill with water to make a linear sea 28-Oct-2010 4:05:13 EDT PM Barbara Murck: if that continues to wide, it can turn into a full-fledged ocean 28-Oct-2010 4:05:23 EDT PM Barbara Murck: is that pretty clear, or is there another part you want to review? 28-Oct- 2010 4:05:34 EDT PM Lucia Salvati: I have a question next...:) 28-Oct-2010 4:05:42 EDT PM Barbara Murck: ok 28-Oct-2010 4:05:45 EDT PM Hakima Hafizi: no, that is clear 28-Oct-2010 4:05:48 EDT PM Barbara Murck: great 28-Oct-2010 4:05:52 EDT PM Hakima Hafizi: thank you very much 28-Oct-2010 4:05:53 EDT PM Barbara Murck: Lucia...? 28-Oct-2010 4:05:59 EDT PM Lucia Salvati: I wa swondering what an example could be of somethign which can be measured by an instantaneous temporal sclae... 28-Oct-2010 4:06:07 EDT PM Barbara Murck: well... 28-Oct-2010 4:06:14 EDT PM Barbara Murck: let me think... 28-Oct-2010 4:06:16 EDT PM Lucia Salvati: sorry about the spelling 28-Oct-2010 4:06:19 EDT PM Barbara Murck: basically any kind of chemical reaction that is proceeding 28-Oct-2010 4:06:27 EDT PM Barbara Murck: so for example 28-Oct-2010 4:06:31 EDT PM Barbara Murck: you can think of the fact that a plant is constantly taking carbon dioxide from the atmosphere 28-Oct-2010 4:06:48 EDT PM Barbara Murck: and giving off oxygen 28-Oct-2010 4:06:55 EDT PM Lucia Salvati: ok 28-Oct-2010 4:07:01 EDT PM Barbara Murck: from one instant to the next, this is always happening 28-Oct-2010 4:07:03 EDT PM Barbara Murck: or any process that happens with microorganisms basically 28-Oct-2010 4:07:16 EDT PM Barbara Murck: many chemical reactions 28-Oct-2010 4:07:21 EDT PM Lucia Salvati: ok 28-Oct-2010 4:07:24 EDT PM Barbara Murck: those are a few examples...
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This note was uploaded on 11/30/2010 for the course ENV ENV100Y5 taught by Professor Muruck during the Fall '10 term at University of Toronto.

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Quiz #2 Chat 10-28-10 - Online Q&A for Quiz #2 – from...

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