2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Nyob ib ncig ntawm lub xyoo pua tsib, ua tsaug rau cov ntxhuav, cov neeg hais lus Berber pib hla Sahara suab puam. Los ntawm lub xyoo pua yim mus rau, txhua xyoo kev lag luam caravans ua raws txoj kev tom qab piav qhia los ntawm cov kws sau ntawv Arabic nrog feeb ua tib zoo saib kom meej.
Leej twg pib ua lag luam trans-Saharan?
Tus Neeg Portuguese taug kev ncig ntug dej hiav txwv West African tau qhib txoj hauv kev tshiab rau kev lag luam ntawm Tebchaws Europe thiab West Africa. Los ntawm lub xyoo pua 16th thaum ntxov, European kev lag luam hauv paus, cov chaw tsim khoom tsim ntawm ntug dej hiav txwv txij li xyoo 1445, thiab kev lag luam nrog cov neeg nplua nuj nyob sab Europe tau ua qhov tseem ceeb rau West Africa.
Kev lag luam trans-Saharan xaus li cas?
Lub hnub nyoog kub ntawm kev lag luam trans-Saharan xaus nrog kev tawg ntawm Songhay faj tim teb chaws tom qab Moroccan nres xyoo 1591. Kev tsis sib haum xeeb ntawm West African nom tswv cov qauv, kev lag luam niaj hnub poob ntawm Northern Africa, thiab European kev sib tw ntawm ntug dej hiav txwv Guinea ua rau kev lag luam caravan tsis muaj txiaj ntsig.
Dab tsi ua rau kev lag luam trans-Saharan?
Qhov ua rau muaj kev loj hlob ntawm kev lag luam trans-Saharan zoo ib yam li cov kev lag luam nce ntxiv ntawm Silk Roads thiab Indian Ocean kev lag luam network. Lawv suav nrog kev xav rau cov khoom tsis muaj nyob hauv cov neeg yuav khoom hauv tsev, kev txhim kho hauv kev coj ua lag luam, thiab kev tsim kho thev naus laus zis.
Ntev npaum li cas txoj kev lag luam hla-Saharan?
AP World NotesUnit 2: Trans-Saharan Trade (1200-1450) | Tsib.
Pom zoo:
Trans saharan pauv pib li cas?
Ib puag ncig lub xyoo pua tsib, ua tsaug rau qhov muaj cov ntxhuav, cov neeg hais lus Berber pib hla Sahara Desert. Txawm hais tias cov khoom siv ntsev hauv zos tau txaus hauv sub-Saharan Africa, kev noj cov ntsev Saharan tau txhawb nqa rau kev lag luam.
Kev vam meej twg yog ib feem ntawm kev lag luam trans-saharan?
Txoj kev hla sab hnub tuaj-Saharan tau coj mus rau txoj kev loj hlob ntawm cov neeg nyob ntev Kanem–Bornu Empire nrog rau Ghana, Mali, thiab Songhai empires Songhai empires Xyoo 1590, al-Mansur coj kom zoo dua ntawm kev sib cav sib ceg tsis ntev los no hauv lub teb chaws Ottoman thiab xa ib pab tub rog nyob rau hauv cov lus txib ntawm Judar Pasha kom kov yeej Songhai thiab tau txais kev tswj hwm ntawm Trans-Saharan txoj kev lag luam.
Ntawm kev pauv pauv pauv hloov pauv?
Kev sib pauv pauv hloov pauv yog daim ntawv cog lus nyiaj txiag uas tau teev tseg thiab ua lag luam ntawm kev sib pauv hloov pauv. Qhov yooj yim hais, cov no yog cov khoom siv uas tau pauv pauv hauv kev tswj hwm. … Cov yav tom ntej thiab cov kev xaiv yog ob qho kev sib pauv uas nrov tshaj plaws.
Qhov twg yog qhov kev hloov pauv hloov pauv hloov pauv?
Semiconservative replication piav qhia txog cov txheej txheem ntawm DNA replication nyob rau hauv tag nrho cov paub hlwb. DNA replication tshwm sim ntawm ntau lub hauv paus pib ntawm kev rov ua dua raws DNA qauv strand. Raws li DNA ob chav helix yog unwound by helicase, replication tshwm sim nyias ntawm txhua tus qauv strand nyob rau hauv antiparallel cov lus qhia.
Qhov kev hloov pauv twg yog xav tias yuav cuam tshuam los ntawm kev hloov pauv hloov pauv?
Dependent Variable Qhov sib txawv uas nyob ntawm lwm yam uas ntsuas. Cov kev hloov pauv no yuav tsum tau hloov pauv raws li qhov kev sim ua haujlwm ntawm tus kheej hloov pauv lossis hloov pauv. Nws yog cov nyhuv presumed. Qhov kev tshawb fawb hloov pauv twg yog qhov tshwm sim?
