2024 Tus sau: Luke Adderiy | [email protected]. Kawg hloov kho: 2024-01-10 19:34
Glacial striations los yog striae yog khawb los yog gouges txiav rau hauv txaj los ntawm glacial abrasion. Cov khawb thiab khawb no tau pom thawj zaug vim yog qhov tshwm sim ntawm lub qhov dej khov txav hauv lig 18th caug xyoo thaum Swiss alpinists thawj zaug cuam tshuam lawv nrog cov dej khov.
Kev sib tw nyob qhov twg?
Glacial grooves and striations are gouged or scratched mus rau bedrock as the glacier move down stream. Pob zeb thiab pob zeb ntxhib tau daig hauv qab cov dej khov nab kuab, thiab ua rau thaj av tawg thaum lub glacier thawb thiab rub lawv mus.
Kev sib tw ua li cas?
Raws li cov dej khov ntws hla av, lawv muab cov pob zeb thiab cov pob zeb nkag mus rau hauv cov dej khov. … Sij hawm dhau mus, lub glacier txav hla pob zeb thiab sediment, tawm striations los yog striae, nyob rau hauv pob zeb nto uas yuav qhia tau hais tias lub glacier twb ntws.
Dab tsi yog qhov txhais ntawm striation hauv thaj chaw?
Ib qho ntawm ob peb, ntev, ncaj, kab sib npaug lossis grooves hauv cov pob zeb hauv av, tsim los ntawm pob zeb, pob zeb, thiab pebbles embedded rau hauv lub glacier uas tau hla saum npoo..
cov cim striation tshwm sim los ntawm dab tsi?
Striated toolmarks (tseem hu ua striae, kev sib txhuam cov cim, abrasion marks, lossis kos cim) - tsim thaum ib lub cuab yeej muab tso rau lwm yam khoom thiab txav mus rau qhov sib npaug mus rau thiab hla cov khoom siv siabCov striations muaj xws li qhov tshwm sim ntawm qhov chaw contour variations.
Pom zoo:
Thaum muaj kev sib tsoo sab av loj-thoob ntiaj teb tectonic kev sib tsoo lub phaj twg?
Thaum dej hiav txwv thiab daim av teb chaws sib tsoo, thaum kawg daim phiaj dej hiav txwv yog subducted nyob rau hauv lub continental phaj vim lub siab ceev ntawm cov dej hiav txwv phaj . Yuav ua li cas thaum ob daim phiaj av av sib tsoo?
Puas yog kev sib ntaus sib tua txuas ntxiv tom qab kev sib ntaus sib tua?
Kev tsov rog txuas ntxiv rau rau teev tom qab kos npe rau kev sib ntaus sib tua. "Cov thawj coj tau hais kom sib ntaus sib tua mus txog 11 teev sawv ntxov ib txhia tau ua thiab qee tus tsis ua raws li lawv tus kheej kev soj ntsuam seb nws puas tsim nyog nws tiag,"
Thaum kev sib cuam tshuam sib txawv ua rau muaj kev sib tw?
Thaum kev sib cuam tshuam sib txawv ua rau muaj kev sib tw tsis suav nrog, tus neeg sib tw tsis muaj zog raug yuam kom thim rov qab mus rau qhov txwv tsis pub ntau dua (nws paub cov niche) dua li nws yuav nyob hauv qhov tsis muaj kev sib tw (nws cov niche tseem ceeb).
Rau cov paj tsis sib xws dab tsi yog cov kauj ruam hauv kev tsim cov hybridisation?
Nqe lus nug: Rau cov paj tsis sib xws, cov kauj ruam hauv kev sib xyaw ua ke yog A. Hnab, pollination, rebagging. B. Pollination, bagging, rebagging. C. Emasculation, bagging, pollination, rebagging. D. … teb. … ∗ Yog leej niam leej txiv ua paj tsis sib xws, tsis tas yuav muaj emasculation.
Thaum twg cov kev sib tw racemic tsim?
Racemic sib tov yog feem ntau tsim thaum cov tshuaj achiral hloov mus ua chiral ones Qhov no yog vim qhov tseeb tias chirality tsuas yog paub qhov txawv hauv ib puag ncig chiral. Cov tshuaj achiral nyob rau hauv ib puag ncig achiral tsis nyiam los tsim ib qho enantiomer dua lwm tus .