Gap Fill - Life on Mars - Level 0


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   any      anything      chance      chemicals      deadly      deadly      impossible      land      land      layer      life      living      low      near      nothing      radiation      rays      thing      things      times  
Scientists have found chemicals on Mars. They can kill living . The chemicals mean the of finding on Mars is very . Mars has no ozone , so there is a lot of ultra-violet (UV) . The UV rays and the chemicals make it for to grow on Mars.

Just the are enough to kill living . When they mix with UV , they kill things 11 faster. The scientists said their research shows that the on Mars is . They say the chemicals and UV rays mean that can grow or live on the or the land on Mars.

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