【題目】20世紀(jì)末,科學(xué)家通過衛(wèi)星觀測(cè)在印度洋和西北太平洋上空發(fā)現(xiàn)了大片大氣污染帶,面積約有美國那么大,稱為“亞洲棕色云(ABC)”。ABC的主要成分有煤煙、硫酸鹽、硝酸鹽、粉塵、炭黑等。我國的黃淮海平原、長(zhǎng)江三角洲和珠江三角洲是ABC的熱點(diǎn)區(qū)。據(jù)此回答下面小題。

1關(guān)于“亞洲棕色云”的說法錯(cuò)誤的是

A. 會(huì)危害身體健康

B. 會(huì)加劇全球變暖

C. 會(huì)降低能見度,減少到達(dá)地面的太陽光

D. 主要來源于火力發(fā)電廠、機(jī)動(dòng)車、化工廠、水泥廠等排放的廢氣

2冬季是空氣污染高發(fā)期,當(dāng)空氣重度污染時(shí),我們應(yīng)該怎么做

A. 盡量待在室內(nèi),關(guān)上窗戶,打開空氣凈化器

B. 開窗通風(fēng),讓空氣流通

C. 出門都開私家車,減少吸入外界空氣

D. 加強(qiáng)戶外運(yùn)動(dòng),提高身體免疫力

【答案】

1B

2A

【解析】本題組考查人類活動(dòng)對(duì)氣候的影響及其措施。

1 據(jù)圖可知,該“亞洲棕色云”是由煤煙、硫酸鹽、硝酸鹽、粉塵、炭黑等污染物組成,對(duì)于太陽輻射有阻擋作用,故其不會(huì)加劇全球變暖的趨勢(shì)

2盡量待在室內(nèi),關(guān)上窗戶,打開空氣凈化器;“開窗通風(fēng),讓空氣流通”、“出門都開私家車,減少吸入外界空氣”、“加強(qiáng)戶外運(yùn)動(dòng)”等做法都會(huì)加劇這種危害對(duì)人類的影響。

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