Video: Yuav siv chemistry li cas hauv ib puag ncig?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Environmental chemistry tsom rau qhov muaj thiab cuam tshuam ntawm tshuaj hauv av, dej saum npoo av, thiab dej hauv av. Environmental chemists kawm li cas tshuaj - feem ntau cov kab mob - txav mus los ntawm ib puag ncig . Lawv kuj kawm txog qhov cuam tshuam ntawm cov kab mob no rau hauv ecosystems, tsiaj txhu, thiab tib neeg kev noj qab haus huv.
Ib yam li ntawd, chemistry pab ib puag ncig li cas?
Chemistry ua tau pab peb to taub, saib xyuas, tiv thaiv thiab txhim kho cov ib puag ncig nyob ib ncig ntawm peb. Chemists tab tom tsim cov cuab yeej thiab cov txheej txheem kom paub tseeb tias peb tuaj yeem pom thiab ntsuas huab cua thiab dej paug. Lawv muaj pab los tsim cov pov thawj uas qhia tau hais tias peb cov huab cua hloov pauv li cas rau lub sijhawm.
chemical ib puag ncig yog dab tsi? Chemical ib puag ncig (uas suav nrog hnyav industrial ib puag ncig ) yog exposures nyob rau hauv uas muaj zog concentrations heev corrosive gases, fumes, los yog tshuaj (xws li hauv cov kev daws teeb meem los yog cov khoom khib nyiab lossis kua) kov qhov chaw.
Cov piv txwv ntawm ib puag ncig chemistry yog dab tsi?
Environmental chemistry kuj tseem cuam tshuam nrog cov tshuaj hluavtaws uas tau tsim los ntawm tib neeg thiab dispersed rau hauv ib puag ncig , xws li tshuaj tua kab, polychlorinated biphenyls (PCBs), dioxins, furans, thiab lwm yam.
Puas yog chemistry ib puag ncig kev tshawb fawb?
Environmental science yog ib qho kev kawm txuj ci kev kawm uas suav nrog lub cev, lom neeg thiab cov ntaub ntawv kev kawm (xws li ecology, biology, physics, chemistry , cog kev kawm , zoology, mineralogy, oceanography, limnology, av kev kawm geology thiab lub cev geography, thiab atmospheric kev kawm ) mus kawm ntawv
Pom zoo:
Yuav ua li cas photosynthesis cuam tshuam rau ib puag ncig?
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Cov hluav taws xob mus ncig ib puag ncig yooj yim li cas?
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Mitosis tshwm sim nyob rau hauv ob lub nuclei uas zoo tib yam rau thawj nucleus. Yog li, ob lub hlwb tshiab tsim tom qab kev faib tawm ntawm tes muaj tib yam khoom siv caj ces. Thaum lub sij hawm mitosis, chromosomes condense los ntawm chromatin. Thaum saib nrog lub microscope, chromosomes pom nyob rau hauv lub nucleus
Nws siv sijhawm ntev npaum li cas rau mercury los ua ib lub kiv puag ncig ntawm lub hnub?
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Yuav ua li cas koj xam lub sij hawm nws yuav siv sij hawm mus ncig teb chaws?
Kwv yees seb koj yuav mus sai npaum li cas ntawm koj qhov kev mus ncig. Tom qab ntawd, faib koj qhov kev ncua deb ntawm koj qhov nrawm. Qhov no yuav muab rau koj anestimation ntawm koj lub sijhawm mus ncig. Piv txwv li, yog tias koj mus ncig yog 240 mais thiab koj yuav tsav 40 mais ib teev, koj lub sijhawm yuav yog 240/40 = 6hours