a) it has a number of active volcanoes. b) it has an atmosphere like the earth’s. c) it has a large ocean under its surface. d) it has deep caves several miles long.该题目是单项选择题,请记得只要选择1个答案!正确答案 点击免费查看答案 试题上传试题纠错...
genera has increased thenumberof its employees recently. a.right b.wrong c.not mentioned 免费查看参考答案及解析 题目: 已知枚举类型定义语句为: enum token{number, plus=5, minus, print=10}; 则下列叙述中错误的是( )。 a.枚举常量name的值为1 ...
athere are over 500 known active volcanoes in the world and thousands of extinct volcanoes. 500座知道的活火山在世界和数以万计绝种火山。[translate] a不要因为别人是什么样的人,而忘记自己该做怎样的人. Does not want because others are any type people, but forgot how person oneself should be.[...
aNOAA scientists use current meters attached with turbidity sensors to gather data near underwater volcanoes and other highly active geological sites. Also, satellite imagery is used to observe turbidity by measuring the amount of light that is reflected by a section of water. 用浑浊传感器附有的NO...
The 23 plates in Additional file 1: Table S2 were developed using similar techniques to those used by Bird, small changes in direction of motion, discrepancies in spreading rates, greater knowledge of recent geology (volcanoes, earthquake locations), etc. Fifteen had not appeared in global ...
aVolcanoes have been a major force in the formation of our planet for thousands and thousands of years.Today geologists continually observe active volcanoes for signs of eruption.Using modern instuments,they are usually able to issue a warning before the volcano erupts. 火山是主要力量在我们的行星...
Perhaps the most frightening aspect, though, is that these explosions were so massive that the results don't even compare to those that came fromvolcanoes that have erupted in the last 100 years. TheMount Saint Helens eruption in 1980, for instance, spewed 2.5 cubic kilometers of material, ...
Day 22 Lesson 67 Volcanoes Haroun Tezieff, the Polish scientist, has spent his lifetime studying active volcanoes and deep caves in all parts of the world. In 1848, he went to Lake Kivu in the Congo to observe a new volcano which he later named Kituro. Tezieff was able to set up ...
If and when it does happen, volcanologists will see it coming. "Typically, volcanoes give weeks to months of warning prior to their initial eruption. Volcanoes like Yellowstone typically take even longer," noted former Scientist-in-Charge of the YVO Jake Lowenstern. But if it did happen, a...