6自是霧還是霾

Interactive Video
•
Science
•
6th Grade
•
Hard
Hui M
FREE Resource
4 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
霧主要由什麼組成?
懸浮在空氣中的固態顆粒
空氣塊內部水氣凝結成的小水滴
燃燒後顆粒、有機化合物、金屬
塵埃、花粉、黴菌
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
霾的外觀通常呈現什麼顏色?
乳白色、青白色或純白色
藍色或綠色
黃色、橙灰色
透明無色
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
關於霧和霾的相對濕度,下列敘述何者正確?
霧的相對濕度通常低於75%,霾的相對濕度通常高於75%。
霧的相對濕度通常高於75%,霾的相對濕度通常低於75%。
霧和霾的相對濕度都通常高於75%。
霧和霾的相對濕度都通常低於75%。
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
霾的日變化特徵為何?
僅在午夜至清晨出現,白天陽光露臉後會逐漸消散。
日變化特徵不明顯,一天任何時候都可能出現並持續一整天。
通常在下午出現,傍晚時分最為嚴重。
僅在冬季出現,夏季則完全消失。
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