The ocean covers approximately 70% of Earth’s surface. It’s the largest livable space on our planet, and there’s more life there than anywhere else on Earth. Through exploration, we’re learning more about its biological, chemical, physical, and geological (地质的) aspects. Exploration lea...
A recent scientific research shows that approximately 70% of the Earth's surface ___ water. A. are B. is C. was D. were 相关知识点: 试题来源: 解析 B。解析:地球表面大约70%是水这是客观事实,用一般现在时,且“70% of the Earth's surface”是单数概念,谓语动词用is。A选项are用于复数主语...
The age of the Earth is approximately 1.3×1017 seconds, and one year is approximately 3.2×107 seconds. Which of the following is closest to the age of the Earth in years?畮 选项: A、2.5×109 B、4.1×109 C、1.9×1010 D、2.5×1011 E、4.1×1011 答案: B 经典答疑 发起提问 提问: 点...
解析 The volume is approximately 1300 times that of the earth.= the volume is approximately 1300 times the volume of the earth.如果句子中有两个 the volume,读起来声音重复,因此第二个 the volume 就用代词 that...结果一 题目 the volume is approximately 1300 times that of the earth. 5081 又是...
Define earth. earth synonyms, earth pronunciation, earth translation, English dictionary definition of earth. earth cutaway of the earth n. 1. a. The land surface of the world. b. The softer, friable part of land; soil, especially productive soil. 2. oft
Around 200 million years ago, the earth was 18 degrees warmer than it is now. That might be a bit hot for humans, but it was just right for the giant dinosaurs that wandered about the earth during the Mesozoic (中生代的) era. A new study found that planteating dinosaurs may have contr...
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Having raised 70 million in a completed investment round, the 6 - year - old company aims to launch their products in every major agricultural economy on Earth. Hazel works with more than 160 companies across 12 countries. Its product delivers an odorless vapor (无味的气体) in sugar - ...
Today, as mentioned in the opening paragraph, based on evidence from radiometric dating of the oldest-known terrestrial rocks as well as lunar rock samples (see notes 1) and meteorites, we know that the age of the Earth is approximately 4.54 billion years, with an error range of about 50 ...