Nature 2024, Hlis ntuj nqeg

Phau Ntawv Liab Tsiaj. Cov tsiaj tsis tshua muaj nyob hauv Russia

Phau Ntawv Liab Tsiaj. Cov tsiaj tsis tshua muaj nyob hauv Russia

Kawg hloov kho: 2024-02-12 07:02

Phau Ntawv Liab Tsiaj yog ib phau ntawv nthuav thiab tseem ceeb tshaj plaws rau noob neej. Kev suav nyiaj rau cov hom tsis tshua muaj thiab kev paub txog lawv qhov ntau pab khaws cia qhov xwm txheej

Liab-breasted goose: piav qhia, chaw nyob, yug me nyuam

Liab-breasted goose: piav qhia, chaw nyob, yug me nyuam

Kawg hloov kho: 2024-02-12 07:02

Nqaij liab-mis yog suav tias yog hom nqaim. Tam sim no, cov pej xeem nyob ruaj khov, txawm hais tias cov hom tseem nyob hauv qhov mob hnyav heev, txij li cov chaw rau molting thiab zes yog nquag tsim los ntawm tib neeg

Shrub willow: me nyuam yuav yog tsob ntoo ib yam nkaus

Shrub willow: me nyuam yuav yog tsob ntoo ib yam nkaus

Kawg hloov kho: 2024-02-12 07:02

Shrub willow yog tenacious heev. Nws yuav yog thawj tus tsiv mus rau conflagrations, loj hlob raws txoj kev, ze ntawm txoj kev tsheb ciav hlau thiab cov dej ntws qhuav. Ib tug willow sprout cog nyob rau hauv av tsuas yog loj hlob mus txog peb meters nyob rau hauv lub caij ntuj sov

Chokeberry cotoneaster: piav qhia thiab cov khoom siv tau zoo

Chokeberry cotoneaster: piav qhia thiab cov khoom siv tau zoo

Kawg hloov kho: 2024-02-12 07:02

Tsob ntoo no xav tau kev saib xyuas zoo tom qab cog, tab sis cov cotoneaster chokeberry yuav ua tsaug rau tus tswv rau kev saib xyuas nws, hloov lub dacha, vaj lossis lub vaj tom qab ntawm lub tsev hauv lub tebchaws. Tsis tas li ntawd, cov nroj tsuag no tau ntev tau txais txiaj ntsig los ntawm cov kws kho mob ib txwm muaj rau nws cov khoom siv tshuaj

Npe noog hav zoov. Lub npe thiab hom noog. Cov noog ntawm Russia

Npe noog hav zoov. Lub npe thiab hom noog. Cov noog ntawm Russia

Kawg hloov kho: 2024-02-12 07:02

Peb lub ntiaj teb no muaj ntau tus noog nyob, lub npe tej zaum peb kuj tsis hnov. Lawv pom nyob txhua qhov chaw: hauv hav zoov, roob, steppes, ntawm ntug hiav txwv dej thiab txawm nyob rau hauv lub txias tundra. Kev sib txawv ntawm pawg tsiaj ntiaj teb no yog qhov zoo heev uas, piv txwv li, tsuas yog nyob rau thaj chaw ntawm Lavxias Federation koj tuaj yeem ntsib cov neeg sawv cev ntawm ntau dua 400 hom, suav nrog tsis tsuas yog sedentary, tab sis kuj cov noog tsiv teb tsaws

Npauj Npaim: nta ntawm lub neej ntawm txhua hom

Npauj Npaim: nta ntawm lub neej ntawm txhua hom

Kawg hloov kho: 2024-02-12 07:02

Npaj npauj npaim yog cov kab me me uas nyob ntawm Lepidoptera kev txiav txim, uas yog, butterflies. Lawv yuav tau tham hauv kab lus no

Nees sorrel: tshuaj thaj chaw, contraindications thiab siv

Nees sorrel: tshuaj thaj chaw, contraindications thiab siv

Kawg hloov kho: 2024-02-12 07:02

Horse sorrel (nees oxalis, Qav ceg, konyatnik) yog cov nroj tsuag muaj thoob plaws hauv Russia. Nws yuav tsis nyuaj nrhiav nws. Nws loj hlob nyob txhua qhov chaw: hauv teb, hav zoov ntug thiab txawm nyob ntawm txoj kev. Cov nroj tsuag no tau siv nyob rau hauv pej xeem tshuaj txij thaum ancient sij hawm thiab yuav luag txhua qhov chaw

Marine iguanas: duab, qhov ntau thiab tsawg, tus cwj pwm, qhov tseeb nthuav

Marine iguanas: duab, qhov ntau thiab tsawg, tus cwj pwm, qhov tseeb nthuav

Kawg hloov kho: 2024-02-12 07:02

Ntawm qhov tseeb txog marine iguanas. Tus tsiaj zoo li cas, qhov chaw nyob thiab kev ua neej. Reproduction ntawm marine iguanas

Supernova - kev tuag lossis pib lub neej tshiab?

Supernova - kev tuag lossis pib lub neej tshiab?

Kawg hloov kho: 2024-02-12 07:02

Xwm yog amazing, thiab kev tuag ntawm ib yam ib txwm txhais tau tias yug ntawm ib yam dab tsi tshiab. Nyob rau hauv qhov chaw sab nrauv, teeb meem lwj, thiab nyob rau hauv cov hnub qub nws yog tsim, tsim ib tug zoo kawg nkaus tshuav nyiaj li cas ntawm lub ntug

Quartz pob zeb yog ib qho zoo talisman

Quartz pob zeb yog ib qho zoo talisman

Kawg hloov kho: 2024-02-12 07:02

Ib lub pob zeb ntau tshaj plaws yog quartz. Nws tsim ib pawg loj ntawm ntau yam minerals uas txawv ntawm cov xim thiab cov duab. Quartz pob zeb tau ntev tau siv los ntawm tus txiv neej rau kev tu vaj tse. Cov ntxhia no feem ntau yog siv los ua talisman

Dej nyab meadows: piav qhia, yam ntxwv. Cov nroj tsuag thiab cov av ntawm dej nyab meadows

Dej nyab meadows: piav qhia, yam ntxwv. Cov nroj tsuag thiab cov av ntawm dej nyab meadows

Kawg hloov kho: 2024-02-12 07:02

Dej hav, txhua xyoo dej nyab thaum dej nyab, yog cov nplua nuj ntawm cov khoom zoo uas siv rau quav nyab. Cov meadow yeej ib txwm suav hais tias yog ib feem tseem ceeb ntawm lub neej nyob deb nroog. Pab neeg txiav nyom muab quav nyab rau tag nrho cov tsiaj txhu hauv lub zos. Floodplain meadows yog suav hais tias tshwj xeeb tshaj yog cov txiv hmab txiv ntoo, thiab cov nyom txiav rau lawv yog cov khoom noj zoo tshaj plaws rau cov tsiaj

Liab nceb: npe, duab thiab piav qhia. Boletus liab

Liab nceb: npe, duab thiab piav qhia. Boletus liab

Kawg hloov kho: 2024-02-12 07:02

Muaj cov neeg zoo nyob hauv hav zoov, tsim los ntawm qhov xwm txheej thiab ua rau cov neeg nyiam nceb zoo siab heev. Cov no yog nceb. Ib qho ntawm feem ntau thiab zoo tshaj plaws yog boletus. Los ntawm tsab xov xwm no koj tuaj yeem paub seb lub nceb nrog lub kaus mom liab zoo nkauj yog dab tsi. Cov yam ntxwv thiab cov yam ntxwv zoo li cas nws muaj thiab nws loj hlob nyob qhov twg?

Pale grebe nceb: nws zoo li cas thiab nws loj hlob nyob qhov twg? Pale grebe thiab champignon: zoo sib xws thiab sib txawv

Pale grebe nceb: nws zoo li cas thiab nws loj hlob nyob qhov twg? Pale grebe thiab champignon: zoo sib xws thiab sib txawv

Kawg hloov kho: 2024-02-12 07:02

Mushrooms yog ib qho khoom noj muaj txiaj ntsig thiab qab qab. Tab sis ntau ntawm lawv yog lom. Qhov no yuav tsum nco ntsoov thaum mus rau "kev yos hav zoov ntsiag to". Nyob rau hauv tsab xov xwm no, peb yuav tham nyob rau hauv kom meej txog ib qho ntawm feem ntau insidious thiab txaus ntshai nceb. Lub grebe daj tuaj qhov twg? Nws zoo li cas? Thiab yuav ua li cas kom tsis txhob confuse nws nrog lwm cov nceb noj tau?

Thaum caij nplooj ntoos hlav pib. Cov cim thiab cov cim

Thaum caij nplooj ntoos hlav pib. Cov cim thiab cov cim

Kawg hloov kho: 2024-02-12 07:02

Txhua tus koom nrog caij nplooj ntoos hlav nrog qee yam sib txawv. Rau ib tug, qhov no yog thaum yau nrog tej nkoj nquam nyob rau hauv kwj dej, rau lwm tus - blooming apricot orchards, thiab ib tug neeg nco qab txog cov thawj snowdrops. Thaum pib ntawm lub caij nplooj ntoos hlav tuaj yeem ua kev zoo siab ntau zaus, thiab txhua lub sijhawm uas nws tuaj txog hauv tib lub xyoo yuav raug. Tej zaum koj yuav xav tsis thoob thiab xav paub thaum lub caij nplooj ntoos hlav pib tiag tiag. Cia peb saib qee qhov tseeb ua ke

Predatory ntses. Hom thiab ntau haiv neeg ntawm predatory ntses

Predatory ntses. Hom thiab ntau haiv neeg ntawm predatory ntses

Kawg hloov kho: 2024-02-12 07:02

Ntau npaum li cas yog lub ntiaj teb ntawm cov tsiaj hauv dej, ntawm cov superclass Pisces sawv tawm! Nws kawm txog lawv cov ceg tshwj xeeb ntawm zoology - ichthyology. Ntses nyob ob qho tib si hauv cov dej qab ntsev ntawm dej hiav txwv thiab hiav txwv, thiab hauv cov dej tshiab. Ntawm lawv yog hom kev thaj yeeb nyab xeeb thiab cov tsiaj nyeg. Thawj pub zaub mov noj. Predatory ntses feem ntau yog omnivores

Stargazer ntses: cov lus piav qhia thiab chaw nyob

Stargazer ntses: cov lus piav qhia thiab chaw nyob

Kawg hloov kho: 2024-02-12 07:02

Kev piav qhia ntawm stargazer predatory ntses. Habitat thiab kev ua neej. Speckled stargazer. Yuav ua li cas tuav lub thoob dej yug ntses stargazer?

Carbuncle (pob zeb) - hom pomegranate

Carbuncle (pob zeb) - hom pomegranate

Kawg hloov kho: 2024-02-12 07:02

Carbuncles yog cov zaub mov muaj txiaj ntsig nrog cov ntshav liab ci, paub txij thaum ub. Carbuncle yog, qhov tseeb, ib hom garnet, lub pob zeb nrog cov xim palette. Jewellers thiaj li hu ua tsawg garnets, rubies thiab spinels nrog sib sib zog nqus liab hues

Atlantic puffin: nta, nthuav qhov tseeb

Atlantic puffin: nta, nthuav qhov tseeb

Kawg hloov kho: 2024-02-12 07:02

Tus Atlantic puffin yog ib tug noog funny uas muaj lub npe txawv txawv thiab tsis tshua muaj qhov zoo nkauj. Peb tsab xov xwm yuav qhia txog lub neej ntawm no txawv txawv noog

Armenia. Roob ntawm Caucasus - peb paub dab tsi txog lawv?

Armenia. Roob ntawm Caucasus - peb paub dab tsi txog lawv?

Kawg hloov kho: 2024-02-12 07:02

Armenian Highlands. Ararat yog lub roob dawb huv ntawm Armenians, uas tau dhau los ua lub cim ntawm Armenia. Kev nyem ntawm lub teb chaws. Lub roob siab tshaj plaws ntawm Armenian Highlands - Aragats

Razdan yog tus dej hauv Armenia. Lub nroog ntawm Hrazdan River. Sights ntawm cheeb tsam

Razdan yog tus dej hauv Armenia. Lub nroog ntawm Hrazdan River. Sights ntawm cheeb tsam

Kawg hloov kho: 2024-02-12 07:02

Muaj ntau cov kab lis kev cai thiab keeb kwm yav dhau los ntawm thaj chaw Armenia. Ntau qhov seem ntawm cov chaw qub txeeg qub teg, cov tuam tsev medieval thiab lwm lub tsev ntawm keeb kwm muaj nqis tau pom ntawm no. Cov cheeb tsam ntawm Hrazdan River thiab lub nroog ntawm tib lub npe tshwj xeeb yog nplua nuj nyob rau hauv cov kab lis kev cai zoo sib xws

Shark hom, npe, nta thiab nthuav qhov tseeb

Shark hom, npe, nta thiab nthuav qhov tseeb

Kawg hloov kho: 2024-02-12 07:02

Ua tsaug rau Hollywood, peb txhua tus xav txog tus shark ua tus neeg tua neeg uas tsis muaj peev xwm loj, caum tus neeg ua luam dej tsis tu ncua hnub thiab hmo ntuj. Peb yuav tsis sib cav, muaj cov laj thawj rau cov kev xav zoo li no: sharks tseem yog cov tsiaj nyeg, thiab kev yos hav zoov rau kev ua si yog tus cwj pwm zoo rau lawv. Txawm li cas los xij, muaj ntau hom sharks uas tsis muaj kev phom sij rau cov tsiaj loj, uas tus neeg tuaj yeem raug ntaus nqi. Thiab muaj cov ntses predatory, uas muaj ntau txoj hauv kev (tsawg kawg hauv kev noj haus) zoo ib yam li whales

Lake Vänern - lub qhov muag xiav ntawm Sweden

Lake Vänern - lub qhov muag xiav ntawm Sweden

Kawg hloov kho: 2024-02-12 07:02

Lake Vänern yog lub pas dej loj thib peb hauv Tebchaws Europe. General piav qhia, glacial keeb kwm. Cov neeg nyob hauv lub pas dej: noog thiab ntses. Txoj kev dej, qhov chaw nres nkoj twg nyob ntawm ntug dej, muaj pes tsawg tus dej ntws mus rau hauv lub reservoir. Cov Islands tuaj ntawm lub pas dej thiab Jure archipelago. Nws nyob qhov twg thiab muaj pes tsawg km ntawm lub nroog

Arctic char: yees duab ntawm ntses, piav qhia, cog, ntes

Arctic char: yees duab ntawm ntses, piav qhia, cog, ntes

Kawg hloov kho: 2024-02-12 07:02

Arctic char yog cov ntses tsis tshua pom nyob rau sab qaum teb latitudes. Nyob rau hauv cov qus, muaj ob peb hom ntawm no tus neeg sawv cev ntawm underwater fauna. Hom kab no feem ntau nyob hauv roob txias glacial pas dej lossis hauv dej hiav txwv

Golden Monkey - ib tug tsiaj nyaum mysterious los ntawm Tuam Tshoj

Golden Monkey - ib tug tsiaj nyaum mysterious los ntawm Tuam Tshoj

Kawg hloov kho: 2024-02-12 07:02

Tus liab liab yog ib lub cim ntawm Tuam Tshoj. Nws cov duab feem ntau tuaj yeem pom ntawm cov vases thaum ub thiab cov ntaub lo lo ntxhuav. Txawm li cas los xij, nws zoo li muaj txiaj ntsig zoo nyob. Thiab leej twg uas pom nws thawj zaug involuntarily xav txog seb nws puas yog ib tug tsiaj nyaum tiag tiag?

Poj huab tais ntawm meadows thiab vaj - chamomile. Hom daisies

Poj huab tais ntawm meadows thiab vaj - chamomile. Hom daisies

Kawg hloov kho: 2024-02-12 07:02

Ntawm cov neeg coob coob ntawm txhua hom daisies, muaj ntau qhov sib txawv ntawm cov paj uas zoo sib xws hauv cov qauv, kev tsim tawm, zoo ib yam hauv kev cog thiab kev saib xyuas. Rau ntau tus, lawv yuav zoo li deb ntawm cov daisies ib txwm. Tab sis cov no yog cov paj ntawm pawg no

Ambrosia - puas yog phem lossis zoo?

Ambrosia - puas yog phem lossis zoo?

Kawg hloov kho: 2024-02-12 07:02

Agbrosia yog cov nroj tsuag uas nws paj ntoos ua rau tib neeg noj qab haus huv. Vim li cas thiaj hu ua cov zaub mov ntawm cov vajtswv?

Ntsuab hiav txwv zoo heev

Ntsuab hiav txwv zoo heev

Kawg hloov kho: 2024-02-12 07:02

Cov tsos ntawm seahorses yog amazing thiab zoo heev. Cov qauv ntawm cov ntses pob txha no yog qhov txawv txav. Txawm hais tias cov tsiaj no xyaum tsis muaj teeb meem, lawv muaj kev tiv thaiv zoo los ntawm cov yeeb ncuab tawm tsam los ntawm prickly armor, uas muaj zog heev uas nws nyuaj rau ua txhaum txawm tias tus neeg tuag thiab tuag

Sea pike (molva): cov lus qhia luv luv

Sea pike (molva): cov lus qhia luv luv

Kawg hloov kho: 2024-02-12 07:02

Txhua tus paub tias muaj ntses zoo li pike hauv dej. Tab sis tsis yog txhua tus paub tias muaj hiav txwv pike. Qhov tseeb, tus neeg nyob hauv hiav txwv tob no tau txais nws lub npe vim nws zoo li nws tus txheeb ze tus dej. Science paub cov ntses no los ntawm lub npe txawv kiag li

Star flounder: piav qhia ntawm qhov chaw nws nyob, nws noj dab tsi

Star flounder: piav qhia ntawm qhov chaw nws nyob, nws noj dab tsi

Kawg hloov kho: 2024-02-12 07:02

Family Flounders (Pleuronectidae) sawv cev rau cov ntaub ntawv thim rov qab thiab sab xis ntawm cov ntses, tsim ntau ntau hom nrog ntau qhov sib txawv, cwj pwm, chaw nyob. Tsis hais txog ntawm cov taxon, lawv txhua tus coj txoj kev ua neej nyob thiab muaj lub cev nyias nyias ntawm lub cev rhomboid lossis oval. Lub heroine ntawm tsab xov xwm no yuav yog lub hnub qub flounder. Koj yuav kawm txog cov yam ntxwv ntawm hom no, ntau yam, kev ua neej nyob

Amazing inhabitants of the deep sea. Monsters ntawm lub hiav txwv tob (duab)

Amazing inhabitants of the deep sea. Monsters ntawm lub hiav txwv tob (duab)

Kawg hloov kho: 2024-02-12 07:02

Lub hiav txwv, uas cov neeg feem coob koom nrog lub caij ntuj sov so thiab lub sijhawm zoo ntawm cov xuab zeb puam hauv qab lub hnub ci ntsa iab, yog lub hauv paus ntawm feem ntau ntawm cov kev paub tsis meej uas tau khaws cia hauv qhov tob tsis pom

Kumzha (ntses): piav qhia. Hiav txwv, pas dej thiab kwj dej trout

Kumzha (ntses): piav qhia. Hiav txwv, pas dej thiab kwj dej trout

Kawg hloov kho: 2024-02-12 07:02

Kumzha yog ntses uas nyob hauv tsev neeg salmon. Ntxiv mus, nws yog ib tug neeg sawv cev ntawm nws. Muaj ntau ntau subspecies ntawm cov ntses no, thiab txhua tus ntawm lawv muaj nws tus yam ntxwv txawv. Piv txwv li, qee cov qauv tsis pub tshaj qhov hnyav ntawm 2 kg, tus so ncav cuag ntau tshaj 20

Sargasso Hiav Txwv, carravel ntxiab

Sargasso Hiav Txwv, carravel ntxiab

Kawg hloov kho: 2024-02-12 07:02

Ib yam tshwm sim zoo kawg nkaus hauv Dej Hiav Txwv Atlantic - Hiav Txwv Sargasso. Cov kev tswj hwm ntawm thaj chaw txaus ntshai tshaj plaws thiab txaus ntshai ntawm Atlantic yog 22-36 degrees sab qaum teb latitude thiab 32-64 degrees sab hnub poob longitude

Cov nroj tsuag ntsim: piav qhia thiab npe

Cov nroj tsuag ntsim: piav qhia thiab npe

Kawg hloov kho: 2024-02-12 07:02

Ntau cov nroj tsuag ntsim tau paub rau tib neeg txij li thaum immemorial. Thaum xub thawj, lawv tau siv rau ntau yam kev cai dab qhuas, thiab tsuas yog tom qab ntawd lawv tau pib nquag siv hauv kev ua noj thiab tshuaj

Bittersweet nightshade. Nightshade (Berry) - duab

Bittersweet nightshade. Nightshade (Berry) - duab

Kawg hloov kho: 2024-02-12 07:02

Bittersweet nightshade is a very common plant. Nws belongs rau tsev neeg Solanaceae. Qhov tsob ntoo no tau txais nws lub npe vim qhov saj ntawm berries

Caij nplooj zeeg equinox hauv ntau haiv neeg: Slavic thiab Mev kab lig kev cai

Caij nplooj zeeg equinox hauv ntau haiv neeg: Slavic thiab Mev kab lig kev cai

Kawg hloov kho: 2024-02-12 07:02

Lub caij nplooj zeeg equinox ua kev zoo siab los ntawm cov ntseeg ntawm ntau yam kab lis kev cai: Celts, Zoroastrians, Slavs, hauv Russia, Nyiv thiab lwm lub tebchaws. Kab lus no piav qhia txog kev ua yeeb yam ntawm cov neeg qub Slavs thiab Mev

Lub caij ntuj no yog dab tsi

Lub caij ntuj no yog dab tsi

Kawg hloov kho: 2024-02-12 07:02

Lub caij ntuj no Solstice: teeb tsa hnub. Slavic rituals, omens, divination. Keeb kwm tseem ceeb ntawm lub solstice. Cov neeg sib txawv ntawm lub ntiaj teb no ua li cas hnub no, lawv ua kev zoo siab rau hnub no li cas

Hnub ntev tshaj plaws ntawm lub xyoo

Hnub ntev tshaj plaws ntawm lub xyoo

Kawg hloov kho: 2024-02-12 07:02

Hnub - lo lus no tuaj yeem xa mus rau ntau lub tswv yim. Nws tuaj yeem yog hnub ci lossis hnub ua haujlwm, uas tsis tas li coincide hauv lub sijhawm. Nrog rau kev tsim hluav taws xob, tib neeg yuav luag tsis muaj kev vam khom rau lub voj voog ntawm nruab hnub thiab hmo ntuj. Thiab tseem, hnub ntev tshaj plaws ntawm lub xyoo tseem yog hnub so hauv qee lub tebchaws

Puas yog zuam txaus ntshai thaum lub caij nplooj zeeg lossis tsis yog?

Puas yog zuam txaus ntshai thaum lub caij nplooj zeeg lossis tsis yog?

Kawg hloov kho: 2024-02-12 07:02

Tej zaum txhua tus twb paub lawm tias thaum lub caij nplooj ntoo hlav lig thiab lub caij ntuj sov thaum ntxov muaj cov zuam loj heev. Nws yog ib qho txaus ntshai mus xyuas tom hav zoov yam tsis muaj headdress thiab kaw khaub ncaws. Tab sis yuav ua li cas zuam coj tus cwj pwm thaum lub caij nplooj zeeg? Puas yog nws ua tau kom nyob twj ywm nyob rau lub sijhawm no ntawm lub xyoo, taug kev sab nraum nroog? Zoo li peb tsuas yog npau suav ntawm kev thaj yeeb xwb. vim

Kalanchoe Degremont: piav qhia, kev saib xyuas, kho cov khoom

Kalanchoe Degremont: piav qhia, kev saib xyuas, kho cov khoom

Kawg hloov kho: 2024-02-12 07:02

Kalanchoe Degremona - tsob ntoo sawv ntsug 50 - 70 centimeters siab nrog lub qia muaj zog thiab tawv nqaij greyish-ntsuab nplooj - cov neeg cog qoob loo loj hlob hauv tsev thiab hauv tsev cog khoom. Cov npoo ntawm nws cov nplooj ci ntsa iab yog dai nrog brood buds, los ntawm qhov "me nyuam mos" tsim - me me nroj tsuag nrog cov hauv paus hniav. Lawv yooj yim tawm ntawm jagged ntug ntawm nplooj thiab ib yam li yooj yim nqa paus hauv av

Vim li cas ntoo qhib yog lub cim ntawm kev noj qab haus huv, kev ua neej ntev thiab kev ua tub rog?

Vim li cas ntoo qhib yog lub cim ntawm kev noj qab haus huv, kev ua neej ntev thiab kev ua tub rog?

Kawg hloov kho: 2024-02-12 07:02

Ntau tus neeg xav tias cov nplooj ntoo qhib yog tib yam hauv qhov xwm txheej. Tab sis nws tsis yog. Nws paub tias muaj ntau tshaj li rau puas ntau yam ntawm tsob ntoo no pom nyob rau hauv ntau qhov chaw ntawm lub ntiaj teb no