解析 C。解析:本题考查句子结构。同位语从句用于对名词作进一步解释说明,此处“which has a unique atmosphere and is located in a distant galaxy”是对“a new planet”的解释说明,所以是同位语从句。定语从句是对先行词的修饰限定;状语从句在句子中作状语;主语从句在句子中作主语。
If the earth had no atmosphere, what would the average temperature of the planet be? What are the gases of the exosphere? What gases are found in the mesosphere? What is the outermost part of the sun?s atmosphere called? Do any of the planets have oxygen in their atmosphere?
The atmosphere is the mixture of gases and other materials that surround the Earth in a thin, mostly transparent(透明的)shell. It is held in place by the Earth's gravity. It reaches over 560 kilometers (348 miles) from the surface of the Earth, so we are only able to see what ...
Select the correct answer. Which of the following elements makes up the majority of Earth's atmosphere? a. Oxygen b. Hydrogen c. Argon d. Nitrogen Elements in the atmosphere Although the Earth's atmosphere contains a lot of nitro...
"Atomsphere" is an incorrect spelling. "Atmosphere" refers to the envelope of gases surrounding the Earth or another planet.
A planet's ability to retain an atmosphere depends on its temperature and mass. Simply stated, a gas molecule can "evaporate" from a planet if it reaches a speed known as the escape velocity. For Earth, this velocity is 11 kilometers per second. Any material, including a rocket, must ...
Carbon dioxide, which traps heat in the atmosphere and helps regulate the planet's surface temperature, is constantly being exchanged between the atmosphere on the one hand and the oceans and terrestrial plants on the other. 选项: 答案: A 提问列表 提问 提问: 这道题目没找到考点,还把自己读...
(Scientists later determined that the giant planet has more than six moons,)But what lay beneath those colorful clouds? Was there a solid surface? Or did Jupiter’s atmosphere blend i 一样从前,象1610年伽利略观察木星有四非常大月亮,其中之一几乎是行星水星的大小。 (科学家后确定大行星有超过六月亮...
Earth has abundant water in its oceans but very little carbon dioxide in its relatively thin atmosphere. By contrast, Venus is very dry and its thick atmosphere is mostly carbon dioxide. The original atmospheres of both Venus and Earth were derived at least in part from gases spewed forth, or...
A double-balloon aerostat travels autonomously and reversibly between the ground of a planet with an atmosphere and a predetermined ceiling altitude. Said aerostat comprises a first closed balloon (1) called a carrier, which contains a gas lighter that the gas present in the atmosphere, and a ...