Cov txheej txheem:
Video: Dab tsi yog qhov teeb meem tseem ceeb ntawm ib puag ncig hauv Canada?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Muaj ntau yam sib txawv ntawm Environmental teeb meem hauv Canada uas suav nrog huab cua thiab dej ua paug , kev hloov pauv huab cua, mining thiab txiav ntoo. Cov yam tseem ceeb no tsis yog pom nyob rau hauv xwb Canada tab sis muaj nyob thoob plaws ntiaj teb.
Kuj tseem paub yog, tib neeg cuam tshuam li cas rau ib puag ncig hauv Canada?
Ib puag ncig Canada tau hais tawm cov pa phem ua rau muaj kev txhawj xeeb loj li nws cuam tshuam tsiaj qus, zaub, av thiab dej. Tsoomfwv lub koomhaum tau hais tias huab cua muaj kuab paug los ntawm cov nroog hauv nroog ua rau cov kua qaub los nag thiab pab txhawb rau huab cua hloov.
Tom qab ntawd, lo lus nug yog, dab tsi yog qhov teeb meem loj tshaj plaws ntawm ib puag ncig uas ntsib Western Canada hnub no? Xav txog dab tsi Cov neeg Canadians xav tias yog tus tseem ceeb tshaj tej teeb meem ib puag ncig ntsib Canada , nyob rau sab saum toj ntawm daim ntawv yog kev txhawj xeeb hais txog lub ntiaj teb sov sov thiab kev hloov pauv huab cua (48% hauv Canada , 37% thoob ntiaj teb), ua raws li cov khoom pov tseg peb tsim (43% hauv Canada , 34% thoob ntiaj teb) thiab huab cua paug (23% hauv
Ib yam li ntawd, koj tuaj yeem nug, 5 qhov teeb meem loj ntawm ib puag ncig yog dab tsi?
5 Cov teeb meem loj ib puag ncig- Sib tham
- Ozone Depletion, Greenhouse Effect and Global Warming: Tag nrho peb lub cev tshwm sim muaj feem cuam tshuam rau ib leeg mus rau qhov zoo.
- Desertification:
- Deforestation:
- Loss of Biodiversity:
- Pov tseg cov khib nyiab:
Dab tsi yog qhov teeb meem tam sim no hauv Canada?
Qhov loj tshaj qhov teeb meem ntsej muag Canada yog kev nkag tebchaws; cov neeg tsiv teb tsaws chaw yog qhov tseem ceeb rau nws txoj kev vam meej. Kwv yees li 60% ntawm tag nrho cov neeg Amelikas muaj sia nyob niaj hnub no taug qab lawv cov hauv paus hniav los ntawm Ellis Island. Tebchaws Meskas, thaum ntxov, nkag siab txog tus nqi ntawm kev nkag tebchaws loj heev. Canada cov tag nrho cov pejxeem sib npaug li ntawm California.
Pom zoo:
Ob qhov tseem ceeb ntawm lub voj voog ntawm tes yog dab tsi thiab dab tsi tshwm sim rau lub cell hauv txhua theem?
Muaj ob theem tseem ceeb hauv lub voj voog ntawm tes. Thawj theem yog interphase thaum lub cell loj hlob thiab replicates nws DNA. Qhov thib ob yog theem mitotic (M-Phase) thaum lub sijhawm cell faib thiab hloov ib daim qauv ntawm nws cov DNA mus rau ob lub hlwb zoo tib yam
Dab tsi yog qhov txawv ntawm qhov ntws ntawm cov teeb meem thiab lub zog hauv ib qho ecosystem?
Muaj qhov sib txawv tseem ceeb hauv txoj kev lub zog thiab cov teeb meem ntws los ntawm ib qho ecosystem. Cov teeb meem ntws los ntawm ecosystem hauv daim ntawv ntawm cov khoom noj uas tsis muaj sia nyob uas tseem ceeb rau cov kab mob nyob. Yog li koj pom, teeb meem yog rov siv dua hauv ecosystem. Tsis zoo li qhov teeb meem, lub zog tsis rov siv dua los ntawm qhov system
Lub hom phiaj tseem ceeb ntawm kev tshawb fawb ib puag ncig yog dab tsi?
Piv txwv li, lub hom phiaj ntawm kev tshawb fawb ib puag ncig yog los tsim lub ntiaj teb uas tib neeg paub txog thiab kev txhawj xeeb txog ib puag ncig thiab cov teeb meem cuam tshuam nrog nws, thiab cog lus ua haujlwm ntawm tus kheej nrog rau kev sib koom ua ke rau kev daws teeb meem tam sim no thiab tiv thaiv cov teeb meem yav tom ntej
Dab tsi yog qhov tseem ceeb ntawm cov organic teeb meem hauv av?
Organic teeb meem muaj xws li cov nroj tsuag lossis tsiaj cov khoom uas rov qab los rau hauv av thiab mus rau hauv cov txheej txheem decomposition. Ntxiv nrog rau kev muab cov as-ham thiab chaw nyob rau cov kab mob nyob hauv cov av, cov organic teeb meem tseem khi cov av rau hauv aggregates thiab txhim kho cov dej tuav cov av
Puas yog khoov ntawm lub teeb tsis nyob ib puag ncig cov teeb meem?
Diffraction yog pom ntawm lub teeb tsis muaj zog tab sis tsuas yog thaum nthwv dej ntsib teeb meem nrog cov wavelengths me me (xws li cov khoom raug tshem tawm hauv peb cov huab cua). Diffraction yog qhov khoov ntawm nthwv dej ncig obstacles thiab qhib. Tus nqi ntawm diffraction nce nrog nce wavelength