百度试题 结果1 题目The sun is made up of ___. A. gas B. water C. rock D. ice 相关知识点: 试题来源: 解析 A。本题考查天文知识,太阳是由气体组成的。反馈 收藏
The Sun Made of Hot Gasdoi:10.1134/S1063772923130048TWENTIETH centuryGASESThe paper presents an essay on the use of spectral analysis in the 19th–early 20th centuries to study the nature of the Sun.Yazev, S. A.Astronomy Reports
The sun is made ofgas and plasma. Most of the gas — 92% — is hydrogen. If the sun were smaller, it would just be a huge ball of hydrogen akin toJupiter. According to NASA Space Place, the hydrogen in the sun's core is held together by a lot ofgravityresulting in high pressure...
The Sun is a very important star in our solar system. It is a huge ball of hot gas. The Sun is extremely bright and gives off a lot of heat and light. Without the Sun, life on Earth would not be possible. The Sun is made up of mostly hydrogen and helium. It is constantly u...
Please tell me which you like.告诉我你喜欢哪一个。She has got what she wanted.她要的东西得到了。注:有时介词后可接跟一个宾语从句(但介词后通常不接that和if引导的宾语从句):如:From what you say, he is right.根据你所说的,他是对的。有极个别介词(如but,except)可接that引导的宾语从句:如:...
The convective zone, which is the final 30 percent of the sun's radius, is dominated by convection currents that carry the energy outward to the surface. These convection currents are rising movements of hot gas next to falling movements of cool gas: It looks kind of like glitter in a sim...
energy from the Sun to make their own food.Energy from Gas Most cars, trucks, planes and trains get energy from gas. Gas is made from oit. Oil is under the ground. Factories change the oil into gas.Electricity Electricity is a kind of energy. We use electricity to run many things. ...
This is why scientists and engineers have been trying to figure out a way to create a nuclear fusion reactor here on Earth. All of our nuclear reactors today work vianuclear fission, which splits atoms into smaller elements, but is a much less efficient process for converting mass in...
So the main gas is hydrogen, which accounts for 90% of the sun’s matter. Now, 'matter'means what something is made of. Rob And hydrogen creates all the sun’s energy. Heat and light energy is created all the time inthe sun’s core as a result...
5. Which of the following is not true? 相关知识点: 试题来源: 解析 1. 答案: C 解析: C 细节理解题。根据文章第四段中的But scientists have ideas about what its surface is like. They think that Jupiter is mostly made up of gas and liquid.可知答案。 2. 答案: D 解析: D 细节理解题...