If you can live on Mars, or if there was life on this planet, it's a natural question. The population of our planet has far outstripped the boundaries from which the planet begins to overcrow. Global resources are decreasing, while their consumption is rising more and more. The world's...
But scientists theorize that water on Mars is able to maintain a liquid form due to the high level of the salt content—so high that the possibility of active life surviving in such a habitat is pretty low.With the salty water and an unsuitable climate, Mars is currently a place not fit...
on Mars,___the landing vehicles have been sent there for a few years.【小题1】A.it isB.itC.it to beD.was【小题2】A.expectedB.hopedC.requiredD.sent【小题3】A.toB.ofC.moreD.in【小题4】A.chancesB.openingsC.occasionsD.possibility【小题5】A.quiteB.veryC.muchD.more【小题6】A.a...
Where is the planet Mars located in the solar system? Is there life on planet Venus? What does the planet Mars look like? Does planet Mars have water? What type of planet is Mars? What is the surface of Mars like? Is Mercury a dwarf planet?
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and it is believed that there would be enough ice at the poles to cover the planet with water if it melted.Although there is no life on the Mars now,some scientists think there may have been some form of life a long time ago.At that time,the planet had active volcanoes(火山); the ...
But across the latter half of this period, there has been a steep___ in media coverage (报道)of the subject.Think of what would change if we valued___ on the earth as much as we value the possibility water on Mars.___ 3% of the water on this planet is fresh and of that, two...
They've found bacteri a that live in the ice. The bacteri a survive in very small pockets of water.If there's life near the South Pole, there may be life on cold planets. Mars is one possibility. Europa, a moon of Jupiter, is another. Europ a is covered with ice. Beneath the ...
In the last section of the paper, the authors state: “Despite these drawbacks and limitations, there is always the possibility that Martian life adapted to those brines and some terrestrial organisms could survive in them, which is a consideration for planetary protection because life on Mars mig...
But new discoveries offer a bit more hope that some form of life existed there in the past --- and perhaps is still there in the present. Methane gas(甲烷) and water have been found on the Red Plane. The presence of both suggests at least the possibility of life. According to a new...