2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
cov khoom noj uas ploj mus yog cov uas yuav lwj, lwj lossis tsis muaj kev nyab xeeb rau kev noj yogtsis khaws cia hauv tub yees ntawm 40 ° F lossis qis dua, lossis khov ntawm 0 ° F lossis qis dua. Piv txwv ntawm cov khoom noj uas yuav tsum tau khaws cia hauv tub yees kom muaj kev nyab xeeb muaj xws li nqaij, nqaij qaib, ntses, khoom noj siv mis, thiab tag nrho cov khoom noj uas siav.
Yam khoom ntawm cov khoom puas tuaj yeem raug puas tsuaj?
7.1 Taw qhia. Cov khoom noj uas ploj mus, xws li txiv hmab txiv ntoo thiab zaub, khoom noj siv mis, ntses, thiab nqaij, muaj qhov txwv txee lub neej tom qab sau lossis ntau lawm. Qhov kev ncua ua ntej lawv yuav tsis tuaj yeem ua lag luam lossis tsis tuaj yeem yog nyob ntawm cov khoom noj nws tus kheej thiab ntau yam ntawm ib puag ncig.
3 yam piv txwv ntawm cov khoom puas tsuaj yog dab tsi?
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Piv txwv ntawm cov khoom noj uas ploj mus yog: nqaij, nqaij qaib, ntses, zaub thiab txiv hmab txiv ntoo nyoos. Qee cov kab mob tuaj yeem ua rau cov zaub mov lwj thiab tsim cov ntxhiab tsw, saj thiab textures.
Puas yog tag nrho cov khoom puas tsuaj?
21.1. 1 Kev Taw Qhia. Txhua yam khoom noj yog cov khoom lag luam uas tuaj yeem ua tsis tau, raug rau cov kab mob microbial. Tam sim no, ib qho ntawm kev siv zog loj tshaj plaws ntawm kev lag luam yog los tsim cov tshuab ntim khoom tshiab los xyuas kom meej kev lag luam ntawm kev ruaj ntseg-txhim kho cov khoom, tswj qhov zoo thiab txuas lub neej txee.
Koj ua li cas cov khoom puas tsuaj?
Ntawm no yog plaub lub tswv yim zoo rau kev tuav cov zaub mov tsis zoo:
- Siv qhov zoo tshaj plawszaub mov. Ua ntej, koj yuav tsum xyuas kom meej tias koj tab tom yuav khoom noj khoom haus zoo thiab cov khoom xyaw. …
- Ua raws li cov lus qhia cia. …
- Ua kom chav ua noj thiab chaw tsim khoom noj kom huv si. …
- Nco ntsoov ntxuav tes.
Pom zoo:
Yuav ua li cas cov tsiaj tsis muaj kev puas tsuaj puas tsuaj?
Ntiaj teb uas tsis muaj kev puas tsuaj yog impervious rau txhua yam teebmeemuas ib txwm ua rau tsiaj txhu, xws li: Kev puas tsuaj (xws li kev puas tsuaj rau kev sib ntaus sib tua) Txhua yam teebmeem "tua" ib tug tsiaj. Puas puas tua indestructible?
Cov neeg nqa khoom nrov puas tuaj yeem ua rau puas tsuaj?
Yog tias qhov teeb meem nrog lub suab nrov tshwm sim thiab tsis daws sai li sai tau, qhov ua rau lub cav nqa lub suab nrov - qhov twg nws yog - tuaj yeem tiv thaiv lwm qhov ntawm koj lub cav ntawm kev ua haujlwm zoo. Nws tuaj yeem ua rau ua rau muaj teeb meem loj heev thiab puas tsuaj rau koj lub tsheb mus ntev.
Puas yog cov roj chlorine yog cov khoom lossis cov khoom sib xyaw?
Chlorine yog nyob rau hauv pawg 17 ntawm lub sij hawm lub sij hawm, tseem hu ua lub halogens, thiab tsis pom raws li lub caij nyob rau hauv cov xwm - tsuas yog ib tug compound. Feem ntau ntawm cov no yog ntsev, los yog sodium chloride, thiab cov poov tshuaj compounds sylvite (los yog potassium chloride) thiab carnallite (potassium magnesium chloride hexahydrate).
Cov khoom siv puas yog khoom vaj khoom tsev?
khoom yog a khoom vaj khoom tsev ruaj khov, lossis khoom tsis yog tam sim no. Qhov no txhais tau tias nws yuav tsis raug muag hauv lub xyoo tom ntej accounting thiab tsis tuaj yeem ua kua tau yooj yim. Txawm hais tias nws yog qhov zoo kom muaj cov khoom muaj nqis tam sim no uas muab koj lub lag luam npaj nkag mus rau cov nyiaj ntsuab, tau txais cov cuab tam mus sij hawm ntev kuj yog qhov zoo.
Puas yog cov nroj tsuag carnivorous yog cov tsim khoom lossis cov neeg siv khoom?
As producers, cov nroj tsuag tsim lub hauv paus ntawm yuav luag txhua cov khoom noj hauv ntiaj teb. Carnivorous nroj tsuag zoo li "tig rooj" thaum lawv ua raws li cov neeg siv khoom, gobbling kab, qav, thiab cov tsiaj me me. Puas yog Venus flytrap yog tus neeg siv khoom thiab tsim khoom?
