Video: Dab tsi yog qhov laj thawj tseem ceeb ntawm desertification hauv Africa?
2024 Tus sau: Stanley Ellington | [email protected]. Kawg hloov kho: 2023-12-16 00:17
'Climatic variations' thiab 'Tib neeg kev ua ub no' tuaj yeem suav tias yog ob qho lub ntsiab ua rau desertification . tshem tawm cov nroj tsuag ntuj (los ntawm kev noj cov roj ntoo ntau dhau), kev ua liaj ua teb nyob rau hauv cov ecosystems yooj yim ntawm cov cheeb tsam arid thiab ib nrab arid, uas yog li strained tshaj lawv lub peev xwm.
Xav txog qhov no, dab tsi yog 3 lub ntsiab ua rau muaj suab puam hauv Africa?
Overgrazing yog qhov tseem ceeb ua rau desertification thoob ntiaj teb. Lwm yam uas ua rau desertification suav nrog kev tsim kho hauv nroog, kev hloov pauv huab cua, overdrafting ntawm cov av hauv av, deforestation, natural disasters thiab tillage xyaum ua liaj ua teb uas tso cov av yooj yim rau cua.
Tsis tas li ntawd, qhov twg desertification tshwm sim hauv Africa? Teb chaws Africa yog lub teb chaws feem ntau cuam tshuam los ntawm kev puam tsuaj , thiab ib qho ntawm cov ciam teb uas pom tseeb tshaj plaws ntawm thaj av yog sab qab teb ntawm Sahara suab puam. Cov teb chaws uas nyob ntawm ntug dej hiav txwv Sahara yog cov neeg pluag tshaj plaws nyob hauv lub ntiaj teb, thiab lawv raug kev kub ntxhov ib ntus uas ua rau lawv cov neeg puas tsuaj.
Dab tsi yog desertification hauv Africa?
Desertification yog, "dej degradation nyob rau hauv arid, semi-arid, thiab qhuav sub-humid qhov chaw tshwm sim los ntawm ntau yam, nrog rau kev hloov pauv huab cua thiab tib neeg kev ua ub no". Tsis suav nrog hauv cov ntsiab lus yog cov cheeb tsam uas muaj huab cua hyper-arid lossis huab cua ntub.
Dab tsi yog qhov laj thawj tseem ceeb ntawm kev ua suab puam hauv Sahel?
Desertification yog tshwm sim nyob rau hauv Sahel ib feem vim muaj dej nag txhua xyoo tab sis feem ntau yog vim muaj kev cuam tshuam los ntawm tib neeg kev ua ub no xws li overgrazing . Tsiaj txhu raug tso tseg rau graze ntawm ib feem ntawm thaj av tshem tawm feem ntau ntawm cov nroj tsuag thiab tawm hauv av raug thiab raug erosion.
Pom zoo:
Dab tsi yog qhov laj thawj tseem ceeb ntawm kev poob hauj lwm?
Kev hloov pauv cov ntaub ntawv qis yog qhov laj thawj tseem ceeb rau kev poob kev poob haujlwm. Daim ntawv thov ntawm cov nruab nrab (xws li kev sib tham, kev sib tham hauv online) uas tso cai rau kev sib pauv ntaub ntawv sai dua yuav txo lub sijhawm sib xws ntawm cov neeg nrhiav haujlwm thiab cov tswv ntiav, thiab tom qab ntawd txo qis kev poob haujlwm
Dab tsi yog qhov laj thawj tseem ceeb uas tsoomfwv Meskas tau cuam tshuam rau txoj kev tsheb ciav hlau loj ntawm xyoo 1877?
Qhov laj thawj tseem ceeb uas tsoomfwv Meskas tau cuam tshuam nrog Kev Tawm Tsam Loj Loj thaum xyoo 1877 yog vim nws tau tso ntau txhiab leej neeg tsis muaj tsheb thauj mus los, uas txhais tau tias US GDP tau poob qis hauv kev ua lag luam ntawm txhua yam
Dab tsi yog qhov laj thawj tseem ceeb ntawm WWII?
Cov laj thawj tseem ceeb ntawm Kev Tsov Rog Thoob Ntiaj Teb Zaum 2 tau muaj ntau heev. Lawv suav nrog kev cuam tshuam ntawm Cov Lus Cog Tseg ntawm Versailles tom qab WWI, kev lag luam thoob ntiaj teb kev nyuaj siab, tsis ua raws li kev xav, nce kev ua tub rog nyob hauv tebchaws Yelemes thiab Nyij Pooj, thiab kev ua tsis tiav ntawm Pab Koomtes ntawm Tebchaws
Dab tsi yog qhov laj thawj tseem ceeb ntawm kev sib txawv?
Cov hauv qab no yog qhov ua tau ntawm qhov sib txawv no: Kev xaiv cov neeg ua haujlwm qis. Kev cob qhia tsis txaus rau cov neeg ua haujlwm. Cov lus qhia tsis raug. Peb e ntawm sub-standard khoom yuav tsum tau rework. Kev siv cov tshuab thiab cov khoom siv tsis raug. Kev saib xyuas tsis muaj peev xwm. Kev ua haujlwm tsis zoo. Lub sijhawm tsis zoo ntawm cov txheej txheem ntau lawm
Dab tsi yog qhov laj thawj tseem ceeb ntawm Congress ntawm Vienna?
Lub hom phiaj tseem ceeb ntawm Congress ntawm Vienna yog los tsim cov ntsiab lus ntawm kev thaj yeeb nyab xeeb ntev ntawm European powers tom qab Fabkis Revolution thiab Napoleonic Wars thiab ua tiav European ciam teb txhawm rau tsim kom muaj kev sib npaug ntawm txhua lub teb chaws loj ntawm Tebchaws Europe