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【题目】下表为世界各大洲的主要农业灾害情况,据此完成下列各题。

地区

亚洲

欧洲

非洲

北美洲

南美洲

大洋州

主要农业灾害

干旱、洪水、沙漠化、水土流失、台风、龙卷风

酸雨、雪灾

干旱、洪水、沙漠化、蝗灾

干旱、洪水、飓风、龙卷风、水土流失、酸雨

干旱、洪水、水土流失

干旱、土壤盐碱化、生物灾害

1欧洲农业灾害明显较少且少有干旱现象的主要原因是:

A. 四周高山环绕,屏障寒风 B. 地广人稀,务农者少

C. 气候温湿且稳定 D. 用先进科技改造环境

2欧洲和北美洲出现同样的农业灾害类型中,其成因与下列哪各因素有关:

A. 自然资源过度开发 B. 工业化程度高

C. 受西风带影响,降水多 D. 纬度跨度大,农业灾害类型多

【答案】

1C

2B

【解析】

1欧洲受盛行西风带影响,来自海洋的西风带来了大量的水汽,所以其气候特点具有海洋性特征,具体表现为冬季不冷,夏季不热,年降水量均匀,所以C正确。

2从表中可以看出,欧洲和北美洲出现的同样的农业灾害是酸雨,主要是由于大量排放酸性气体(主要来自工业生产),所以B正确。

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