Which of the following played an important role in the accretion of the early Earth? A. Gravity B. Magnetic field C. Electric charge D. Wind 相关知识点: 试题来源: 解析 A。解析:在早期地球的吸积过程中,重力起到了重要的作用。物质在重力的作用下相互吸引聚集,逐渐形成地球。B选项磁场在早期地球...
解析 D。解析:早期地球温度极高。A选项频繁的火山爆发会释放大量的热能,使得地球温度升高。B选项强烈的太阳辐射在地球形成初期也会给地球带来热量。C选项小行星的碰撞,在碰撞过程中产生巨大的能量,这也会导致地球温度升高。所以以上三个因素都是早期地球高温的主要原因。
The early Earth's surface was constantly changing. Which of the following was a major cause of this change? A. 容物研史来给电片容物研史来给电片Tectonic activity容物研史来给电片容物研史来给电片 B. 例果量区装矿用适流入近例果量区装矿用适流入近Erosion by water例果量区装矿用适流入近例...
An ancient creatures 400 million years ago in the Earth, they appear as early as the dinosaurs 300 million years ago has existed. They are the ocean's top predator, the sea is well-deserved hegemony, sharks. 翻译结果3复制译文编辑译文朗读译文返回顶部 ...
Early forms of life on Earth, ___ in absence of oxygen, required other elements. A.which lived B.that lived C.lived D.were living 查看答案更多“Early forms of life on Earth, ___ in absence of oxygen, required other elements.A.which”相关的问题 第1题 《煤矿重大安全隐患认定办法》适用...
Some photographers were concerned that the launch of the cloud-based Lightroom might mean the end of the road for Lightroom Classic, but 7 years on,it’s still being developed and improved. TheLightroom Ecosystem(formerly called Lightroom CC, also known as Lightroom Cloud) is a family of ...
下列化合物在红外光谱图上1675cm-1——1500cm-1之间有吸收的是
The games you can't play without Joy-Con Controllers - Switch Lite, the portable-only version of Nintendo's console, offers a cheaper way of jumping on the S...
The direction in which the Earth and the other solid planets--Mercury, Venus, and Mars--spins were determined fromcollisions with giant celestial bodies in the early history of the Solar System. 选项: A、spins were determined from B、spins were determined because of ...
Why has life flourished on Earth? This question has a two-part answer. First, Earth has been a cradle for life because of its position relative to the Sun. Second, once life began on Earth, simple early life-forms (photosynthetic bacteria) slowly but inexorably altered the environment in a...