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Life on Mars - Saison 1 (1/8) À la suite d’un accident survenu au milieu d’une enquête, un inspecteur de police se retrouve mystérieusement propulsé en 1973... Une série culte en Grande-Bretagne, qui mêle de manière réjouissante polar et fantastique sur fond de rock des seventies.
The volume of Earth’s water is therefore the area 4π R2. multiplied by the thickness of 3000 m: This gives 1.5 × 10 18 m 3 of water. Since water has a density of 1 ton per cubic meter (1000 kg/m 3 ), we can calculate the mass: For Mars, the ice doesn’t cover the whole planet, only the caps; the polar cap area is.
A better comparison might be to compare the amount of ice in the Mars polar ice caps to the amount of ice in the Greenland ice sheet on Earth, which has been estimated as 2.85 × 10 15 m 3. How does this compare with the ice on Mars? Answer. The Greenland ice sheet has about 2.85 times as much ice as in the polar ice caps on Mars.
定位：None of these data would individually indicate life if found on Earth, but all of them collectively make the case stronger for life on Mars. 这些数据都不能单独说明地球上是否存在生命，但所有这些数据加在一起，都更有力地证明火星上存在生命。 A. weakens 错. B. very different from structures 错
5 de abr. de 2023 · If life ever existed on Mars, we may already have the answer at hand. In January NASA’s Perseverance rover deposited 10 tubes on the surface of Mars.
The variations in temperature on the surface of Mars cause the molecule to flow upwards at higher or lower levels. For example, in the Martian winter the gas could get trapped in underground icy crystals. These crystals, called clathrates, melt in the summer and release the gas. However, the source of the methane is still a complete mystery.
Example 10.5. 1 10.5. 1: Comparing the Amount of Water on Mars and Earth. It is interesting to estimate the amount of water (in the form of ice) on Mars and to compare this with the amount of water on Earth. In each case, we can find the total volume of a layer on a sphere by multiplying the area of the sphere ( 4πR2 4 π R 2) by the thickness ...
