Cov txheej txheem:
Video: Qhov twg feem ntau sinkholes?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
USGS hu thaj chaw zoo li no "karst struts." Raws li USGS, kwv yees li 20 feem pua ntawm cov av hauv Teb Chaws Asmeskas muaj kev cuam tshuam rau cov dab dej. Qhov kev puas tsuaj feem ntau los ntawm sinkholes zoo li tshwm sim hauv Florida , Texas, Alabama , Missouri , Kentucky , Tennessee , thiab Pennsylvania.
Kuj paub, thaj chaw twg hauv Florida muaj cov dab dej ntau tshaj plaws?
RiskMeter's Top 10 Sinkhole-Prone Counties hauv Florida yog:
- Pasco.
- Hernando.
- Hillsborough.
- Marion.
- Pinellas.
- Citrus.
- Polk.
- Txiv kab ntxwv.
Tsis tas li ntawd, cov sinkholes ua li cas? Raws li cov limestone dissolves, pores thiab kab nrib pleb yog loj thiab nqa cov dej acidic ntau dua. Sinkholes yog tsim thaum cov av saum npoo av ntog los yog tog rau hauv cov kab noj hniav los yog thaum cov khoom nto yog nqa mus rau hauv cov voids.
Tib neeg kuj nug tias, dab tsi hauv qab ntawm lub dab dej?
Lub rooj dej hauv qab av ntog kuj tseem, thiab feem ntau yog dej nyab qhov tsua hauv cov pob zeb limestone ntws thiab ntim nrog huab cua es tsis txhob dej. A sinkhole yog qhov tshwm sim ntawm qhov chaw hauv av thaum lub qhov tsua ru tsev tawg mus rau hauv lub qhov tsua hauv qab nws.
Ua li cas koj thiaj paub tias koj muaj lub dab dej?
Thaum twg ib sinkhole daim ntawv nyob ze lossis qis dua koj tsev, koj 'yuav pom cov cim ceeb toom hloov maj mam. Qhov rooj yuav kaw thiab nres latching. Windows uas siv los qhib tau yooj yim ua nyuaj rau qhib, pib ua raws, lossis yuav tsis qhib lossis kaw tag nrho. Koj tej zaum yuav pom tias koj txee qhov rooj thiab tub rau khoom zaum tsis sib xws los yog yuav tsis qhib lossis kaw kom zoo.
Pom zoo:
Dab tsi yog qhov pH ntau ntawm cov tshuab tsis siv neeg feem ntau?
Ntau lub tshuab buffering muaj nyob hauv lub cev uas pab tswj cov pH ntawm cov ntshav thiab lwm cov kua dej hauv qhov nqaim - nruab nrab ntawm pH 7.35 thiab 7.45. Ib qho tsis yog ib yam khoom uas tiv thaiv kev hloov pauv ntawm cov kua dej pH los ntawm kev nqus dej ntau dhau los yog hydroxyl ions
Yuav ua li cas koj sau ib feem raws li ib tug khoom ntawm ib tug tag nrho cov zauv thiab ib feem feem?
Cov cai los nrhiav cov khoom ntawm ib feem feem thiab tag nrho tus lej Peb xub sau tag nrho cov lej ua ib feem, piv txwv li, sau nws faib los ntawm ib qho; Piv txwv li: 7 yog sau ua 71. Peb mam li muab cov zauv. Peb muab cov denominators. Yog tias yuav tsum tau ua kom yooj yim, nws ua tiav thiab tom qab ntawd peb sau cov feem kawg
Qhov twg yog qhov chaw nyob sab av loj feem ntau pom?
Cov rhawv ib txwm muaj nyob hauv South Tuam Tshoj Hiav Txwv, North Hiav Txwv, thiab Persian Gulf thiab feem ntau yog li 80 km dav nrog qhov tob ntawm 30-600 m
Qhov twg yog qhov dej hiav txwv trench feem ntau yuav tsim?
Lub Mariana Trench, nyob rau hauv South Pacific Dej hiav txwv, yog tsim raws li lub hwj chim Pacific phaj subducts nyob rau hauv lub me me, tsawg-ntev Philippine phaj. Nyob rau hauv ib cheeb tsam subduction, qee yam ntawm cov khoom molten - yav dhau los seafloor - tuaj yeem nce los ntawm volcanoes nyob ze ntawm lub trench
Qhov twg ntawm cov ntsiab lus hauv qab no feem ntau pom nyob rau hauv feem ntau cov chiv?
Cov tshuaj chiv niaj hnub suav nrog ib lossis ntau tshaj ntawm peb lub ntsiab lus tseem ceeb tshaj plaws hauv cov zaub mov noj: nitrogen, phosphorus, thiab potassium. Qhov tseem ceeb thib ob yog cov ntsiab lus sulfur, magnesium, thiab calcium