_ makes the earth go around the sun is gravity. A. What B. Which C. That D. Who 相关知识点: 试题来源: 解析 A。本题考查主语从句的引导词。“makes the earth go around the sun”缺少主语,且表示“什么使得地球绕着太阳转”,所以用 what 引导主语从句,选 A。
[听力原文]Most waves are caused by winds, though earthquakes on the ocean bed can also cause them, and tides are caused by the effect of the gravity of the moon on the earth and also, although to a lesser extent, the sun’s gravity. One bulge of water is drawn upon the side of th...
Gravity Is What Keeps the Earth Orbiting the Sun
百度试题 结果1 题目What does the sun provide for Earth? A. Water. B. Light and heat. C. Air. D. Gravity. 相关知识点: 试题来源: 解析 B 反馈 收藏
Albert Einstein's theory of general relativity is based on the idea that massive objects cause a distortion in space-time, which is felt as gravity
What is the force that keeps the planets in orbit around the sun? A. Gravity B. Magnetic force C. Electrical force D. Friction 相关知识点: 试题来源: 解析 A。引力使行星围绕太阳运行。选项 B 磁力不是使行星围绕太阳运行的力。选项 C 电力不是使行星围绕太阳运行的力。选项 D 摩擦力不是使行星...
The Earth’s atmosphere is held around the planet by the force of gravity. A view of the atmosphere from Chain of Craters Road in Hawaii Volcanoes National Park in Hawaii. Photo:USGS, public domain. Layers of the Atmosphere The Earth’s atmosphere has five main layers and a sixth layer, ...
Gravity is a force that we experience every day, yet it remains somewhat of a mystery. It's the reason we stay grounded on Earth and why objects fall when dropped. Although there are several theories attempting to explain gravity, scientists still don't completely understand it. In this arti...
But nature has given us a little trick that we can use to occasionally push farther into the cosmos. When light from a distant star or galaxy passes through a massive cluster, the gravity of that cluster can magnify the image — in some cases, by 10,000 times or more. It's through ...
The potential consequences of unprotected solar viewing are dire. Even a mere few seconds of staring at the sun during aneclipsecan result in temporary or permanent damage to the central retina. Once this delicate tissue is harmed, it cannot regenerate, leading to irreversible central vision loss...