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  3. 　　According to the BBC, the orange colouration is caused by fine particles of sa

　　According to the BBC, the orange colouration is caused by fine particles of sa

游客2023-10-16  13
问题 　　According to the BBC, the orange colouration is caused by fine particles of sand being lifted from the Sahara into the atmosphere, travelling across the world and falling back to the ground mixed in with rain and snow.It occurs once every five years or so—although this year’s orange snow is particularly vibrant, due to a desert sandstorm that was so big it was seen in NASA satellite imagery travelling across the globe, CNN reports.Social media users have posted photos of a ski resort in Sochi, Russia with its eerie orange slopes.The bizarre snow has also reportedly fallen on Bulgaria, Ukraine, Romania, and Moldova."There has been a lot of lifted sand or dust originating from North Africa and the Sahara, from sand storms which have formed in the desert." meteorologist Steven Keates from the UK Met Office told The Independent.
　　Why this year’s orange snow is particularly vibrant?
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答案 Because of a desert sandstorm.
解析 题目意思:为什么今年橙色的雪颜色格外鲜艳?根据题干“this year, particularly, vibrant”可定位至该段第二句“It occurs once every five years or s0 although this year’s orange snow is particularly vibrant, due to a desert sandstorm that was so big it was seen in NASA stallite imagery travelling across the globe, CNN reports”即据美国有线电视新闻网（CNN）报道，尽管今年的橙色降雪特别活跃，但由于沙漠沙尘暴的影响，美国宇航局（NASA）在全球各地的卫星图像中都能看到,但今年的橙色降雪特别活跃，故答案为Because of a desert sandstorm.
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