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ID number:493606
 
Evaluation:
Published: 15.12.2007.
Language: Latvian
Level: Secondary school
Literature: n/a
References: Not used
Extract

Sausums ir ilgstošs mēnešu vai gadu periods, kad kādam noteiktam reģionam trūkst ūdens. Tas ir bezlietus periods, kurš epizodiski atkārtojas apgabalos ar nepietiekamu gaisa un augsnes mitrumu. Diemžēl 98 % no zemeslodes ūdens krājumiem ir sāļais jūras ūdens, ko nevar ne dzert, ne izmantot lauksaimniecībā. Atlikušo divu procentu saldūdens pietiktu sabiedrības vajadzību apmierināšanai, ja tas būtu vienmērīgi sadalīts pa visu zemeslodi.Bet divas trešdaļas saldūdens ledus formā atrodas šļūdoņos vai polos.…

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