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<p class="MsoPlainText">Ch 18 (environmental chem) is NOT on the final. We did over go over a little bit of it.<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">I found this recently. It shows how pollution levels fell during lockdowns. I've seen other similar studies.
<o:p></o:p></p>
<p class="MsoPlainText">I also saw something about how the background vibrations of the earth decreased during lockdowns<o:p></o:p></p>
<p class="MsoPlainText">because there were fewer people out and about. So I guess maybe humans do effect the Earth’s<o:p></o:p></p>
<p class="MsoPlainText">environment.<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
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<p class="MsoPlainText"><a href="https://urldefense.com/v3/__https:/scitechdaily.com/nasa-model-reveals-how-much-pollution-levels-changed-due-to-covid-19-lockdowns/__;!!KGKeukY!nQj0farI048OAN23gZ0KYLUADSg_pkOjNUPCOqYbNuhjUFv9Uu9TvewZGowfStLu$">https://urldefense.com/v3/__https://scitechdaily.com/nasa-model-reveals-how-much-pollution-levels-changed-due-to-covid-19-lockdowns/__;!!KGKeukY!nQj0farI048OAN23gZ0KYLUADSg_pkOjNUPCOqYbNuhjUFv9Uu9TvewZGowfStLu$</a>
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<p class="MsoPlainText"><a href="https://www.sciencedaily.com/releases/2020/07/200723143728.htm">https://www.sciencedaily.com/releases/2020/07/200723143728.htm</a><o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText"><a href="https://earthsky.org/earth/covid19-lockdown-2020-caused-50-percent-global-reduction-human-linked-earth-vibrations">https://earthsky.org/earth/covid19-lockdown-2020-caused-50-percent-global-reduction-human-linked-earth-vibrations</a><o:p></o:p></p>
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