根据Today, Mars has a thin atmosphere. It is cold and dry. 以及"When we look at ancient Mars, we see a different type of surface.可知现在的火星表面和过去是不同的,故A正确。根据Whether there is life on Mars remains unanswered.可知我们仍然不知道火星上是否有生命,故B错误;根据Human beings ...
A. The surface of the Mars is different from it used to be. B. Scientists have known whether there is life on Mars. C. People can not send humans to Mars forever. D. There is not any atmosphere on Mars. 3.What does the underlined word "Those" in the text refer to?
Why is the atmosphere of Marsdisappearing?BFor centuries, humans have wondered whether there is life onA. Because the atmosphere is affectedby the earth.Mars. Scientists have asked why Mars is losing its atmosphere. LastB. Because the atmosphere is blownweek, the question was answered with a ...
Dubbed the Mars Atmosphere and Volatile Evolution, or MAVEN, mission, it is led by principal investigator Bruce Jakosky of the Laboratory for Atmospheric and Space Physics (LASP) at the University of Colorado at Boulder (CU-Boulder) and managed by David Mitchell of NASA’s Goddard Space Flight...
One major reason the settlement on the moon is too dangerous is the difference between the atmosphere environment of the moon and Mars. Atmosphere is important because it protects humans and all other life from a continuous attack of radiation (辐射) caused by sources such as the sun. This ra...
由第二段“ Although Mars’ atmosphere is significantly thinner than Earth’s, at least it has one and would create some sort of protective barrier for humans ”可知,尽管火星的大气层比地球的要稀薄得多,但至少火星有大气,这会给人类创造某种保护屏障。所以根据第二段,火星的大气保护人们免受辐射对人们...
The splitting of white light by the atmosphere gives a well-known blue color to the sky. However, if there is no presence of the atmosphere, there won't be any Raleigh scattering, due to which the white light from the sun will directly reach the eart...
1.C.细节理解题.根据第二段 Atmosphere is important because it protects humans and all other life from a continuous attack of radiation (辐射) caused by sources such as the sun.可知大气层是重要的,因为它保护人类和所有其他生命免受诸如太阳等来源的辐射的持续攻击.根据第2段,火星上的大气层将提供...
These precautions are necessary, because there is no atmosphere in space to carry heat away from surfaces. Gold foil protects materials in space from getting hot in the first place. Even NASA's Mars rovers needed the protection of gold to regulate the temperatures of sensitive instruments and ...
Greenhouse gases are gases that trap heat in our atmosphere. These gases wrap around the Earth like a blanket, preventing heat from the Sun from leaving. The effect is an increase in global temperature on Earth. Answer and Explanation:1 ...