首页
登录
职称英语
Tides are created mainly by the pull of the moon on the earth. The moon’s pu
Tides are created mainly by the pull of the moon on the earth. The moon’s pu
游客
2024-03-01
6
管理
问题
Tides are created mainly by the pull of the moon on the earth. The moon’s pull causes water in the oceans to be a little deeper at a point closest to the moon and also at a point farthest from the moon, on the opposite side of the earth. These two tidal "waves" follow the apparent movement of the moon around the earth and strike nearly every coast line at intervals of about twelve hours and twenty-five minutes. After reaching a high point, the water level goes down gradually for a little more than six hours and then begins to rise toward a new high point. Hence, most coast lines have two tides a day, and the tides occur fifty minutes later each day. Differences in the coast line and in channels in the ocean bottom may change the times that the tidal wave reaches different points along the same coast line.
The difference in water level between high and low tide varies from day to day according to the relative positions of the sun and the moon because the sun also exerts a pull on the earth, although it is only about half as strong as the pull of the moon. When the sun and the moon are pulling along the same line, the tides rise higher, and when they pull at right angles to one another, the tide is lower. The formation of the coast line and variations in the weather are additional factors which can affect the height of tides. Some sections of the coast are shaped in such a way as to cause much higher tides than are experienced in other areas. A strong wind blowing toward the shore may also cause tides to be higher. [br] The time that high tide occurs at a particular place is affected by the factors like the position of the moon, channels in the sea bottom and ______.
选项
答案
variations in the coast line
解析
在短文中清楚地知道,发生潮汐高潮的时间受月亮位置、海岸线变化及海底形状等因素的影响。
转载请注明原文地址:https://tihaiku.com/zcyy/3494803.html
相关试题推荐
Tidesarecreatedmainlybythepullofthemoonontheearth.Themoon’spu
Tidesarecreatedmainlybythepullofthemoonontheearth.Themoon’spu
[originaltext]Inaway,allofusareonaspaceship,theplanetEarth.We
[originaltext]Inaway,allofusareonaspaceship,theplanetEarth.We
[originaltext]Inaway,allofusareonaspaceship,theplanetEarth.We
[originaltext]Inaway,allofusareonaspaceship,theplanetEarth.We
UnitedNations(UN)isaninternational【C1】______ofcountriescreatedto【C2】
UnitedNations(UN)isaninternational【C1】______ofcountriescreatedto【C2】
UnitedNations(UN)isaninternational【C1】______ofcountriescreatedto【C2】
UnitedNations(UN)isaninternational【C1】______ofcountriescreatedto【C2】
随机试题
A.Pβ B. C. D.
患者,男,40岁。症见腹水,腹部胀满,呼吸喘促,大小便不利。其治则宜( )。A
下列有关审计准则的表述,错误的是()。A.审计准则是衡量审计质量的尺度
糖皮质激素在临床上不可用于A.器官移植B.结核病晚期C.儿童急性淋巴细胞性白血病
调剂室对效期药品的使用应注意按A、药品批号摆放 B、药品规格摆放 C、药品名
患者李某,女,45岁,慢性肝炎史8年,近一个月来乏力、食欲缺乏,黄疸进行性加重,
不久前,阜成路中学的一场德育课收到意想不到的效果:在德育课上播放剖腹产录像,几乎
一般来讲,下列不属于商业银行短期借款业务的是()。A:发行金融债券B:债券回购
A.助悬剂 B.稳定剂 C.润湿剂 D.反絮凝剂 E.絮凝剂增加分散介质
在项目投资机会研究阶段进行敏感性分析时,常采用的评价指标是()。 A.投资回
最新回复
(
0
)