Hazardele hidrologice sunt fenomene naturale:ce implica existenţa apei;care au o influenţă directă negativă asupra vieţii oamenilor, asupra societăţii şi a mediului înconjurator, în ansamblu.
Referat la geografie (tipuri de hazarde)
Cuprinde:
-definitie
-cauza
-mod de desfasurare
-elemente
-raspandire
-efecte
-un exemplu (uraganul katrina)
surse: wikipedia, vremea.meteoromania.ro si alte site-uri de referate
Hazardele hidrologice sunt fenomene naturale:ce implica existenţa apei;care au o influenţă directă negativă asupra vieţii oamenilor, asupra societăţii şi a mediului înconjurator, în ansamblu.
Referat la geografie (tipuri de hazarde)
Cuprinde:
-definitie
-cauza
-mod de desfasurare
-elemente
-raspandire
-efecte
-un exemplu (uraganul katrina)
surse: wikipedia, vremea.meteoromania.ro si alte site-uri de referate
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4. În partea superioara a furtunii, vânturi puternice încep sa se învârta tot mai rapid, formând un vârtej. Viteza vântului poate sa depaseasa 400 km/ora, dar pentru furtunile extrem de puternice au fost înregistrate viteze si mai mari . Vârtejul se roteste în spirale din ce în ce mai strânse, marindu-si viteza si înaltânduse spre nori. Apoi tornada coboara din nori si atinge pamântul cu o mare violenta .