首页
登录
职称英语
[originaltext] You may not realize that fog is simply a cloud that touches t
[originaltext] You may not realize that fog is simply a cloud that touches t
游客
2023-07-26
43
管理
问题
You may not realize that fog is simply a cloud that touches the ground. Like any cloud, it is composed of tiny droplets of water, or, in rare cases, of icy crystals that form an ice fog. lce fogs usually occur only in extremely cold climates, because water droplets are so tiny they don’t solidify until the air temperature is far below freezing, generally thirty degrees below zero Celsius or lower. These droplets are nearly spherical. The transparency of fog depends mainly on the concentration of droplets. The more droplets, the denser the fog is. Since water is eight hundred times denser than air, investigators were puzzled for a long time as to why the water particles in fog didn’t simply fall to the ground, making the fog disappear. It turns out that droplets do fall at a predictable rate but in fog-creating conditions, they are either supported by rising air currents or continually replaced by new droplets condensing from water vapor in the air.
选项
A、The density of the water droplets in the air.
B、The size of the water droplets.
C、The temperature of the water droplets.
D、The purity of the water vapor.
答案
A
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2871829.html
相关试题推荐
[originaltext]W:Hello,UltimateComputers.MayIhelpyou?M:Yes,thisisJac
[originaltext]Whenquiteyoung,DanielWebsterdidnotalwaysobeytherule
[originaltext]Whenquiteyoung,DanielWebsterdidnotalwaysobeytherule
[originaltext]Whenquiteyoung,DanielWebsterdidnotalwaysobeytherule
[originaltext]M:Belinda,thegamewillbeginsoon.W:Ican’twaittowatchth
[originaltext]ThesecondMondayofJanuaryisComing-of-AgeDay,anational
[originaltext]ThesecondMondayofJanuaryisComing-of-AgeDay,anational
[originaltext]ThesecondMondayofJanuaryisComing-of-AgeDay,anational
[originaltext]ThesecondMondayofJanuaryisComing-of-AgeDay,anational
[originaltext]W:Itdoesn’tlooklikeyouhavevacuumedthelivingroomorclea
随机试题
Earlyanthropologists,followingthetheorythatwordsdeterminethought,b
[originaltext]AbusinessmanandanurseinBoston,Massachusettswillmarry
Somethingveryunusualhappenedabout80,000yearsago,asEarth’slastice
除消防安全重点单位,其他单位应当结合单位实际,参照制订相应的应急方案,至少每年组
建筑物无障碍实施范围规定中,以下哪项叙述有误?()A.县级政府办公楼应设无障
SF6气体湿度带电检测仪中的阻容式湿度检测仪的测量量程:()℃~(
政府投资的公共基础设施建设项目,业主在项目设计准备与审定决策阶段的工作内容有(
唾液腺造影的适应证不包括A:唾液腺肿瘤 B:慢性唾液腺炎 C:唾液腺瘘 D
甲公司欠乙公司30万元,一直无力偿付,现丙公司欠甲公司20万元,已经到期,但甲公
施工企业可以直接用来编制施工作业计划,签发施工任务单的定额是()。A.预算定额
最新回复
(
0
)