【題目】下列關(guān)于水資源的敘述,正確的是( )
A.降水的時(shí)間分布不均,是造成水資源緊張的人為原因
B.目前人們大量利用的水資源是河流水,湖泊水和淺層地下水
C.水資源為可再生資源,因此不需節(jié)約
D.淡水資源分布是不均衡的,因此節(jié)約用水是區(qū)域性問題,而非全球性問題
【答案】B
【解析】本題考查水資源的分布及利用。
A、世界不同地區(qū)有不同的氣候類型,使得降水也呈現(xiàn)不同的季節(jié)變化特點(diǎn),這是造成水資源緊張的自然原因,故錯(cuò)誤;
B、水是生命之源,它孕育和維持著地球上的一切生命。地球上的淡水資源,絕大部分為兩極和高山的冰川,其余大部分為深層地下水。目前人類利用的淡水資源主要是江河、湖泊水和淺層地下水,故B正確;
C、可再生資源是指被人類開發(fā)利用后,可以在較短時(shí)間內(nèi)更新、再生,或者能夠重復(fù)利用、循環(huán)使用的自然資源,如氣候資源、生物資源、水資源和土地資源等。對于可再生資源應(yīng)有計(jì)劃、有限制地加以開發(fā)利用,故錯(cuò)誤;
D、當(dāng)今世界面臨著人口爆炸、資源(包括水資源)危機(jī)、環(huán)境污染等問題,節(jié)約用水也屬于全球性的問題,我們要保護(hù)好資源與環(huán)境,以維持全球生態(tài)平衡。故錯(cuò)誤。
所以答案是:B。
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