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English, 16.04.2020 02:25 raymondleggett44

While orbiting Mars, NASA's Mars Reconnaissance Orbiter took images of the planet's surface. In those pictures, lines, like plant
Vines, appeared to flow down from slopes on Mars. These lines showed up during the warmer seasons and disappeared in the colder
seasons. The discovery of the lines suggests that water exists on Mars.
Although Mars has long been known to have ice, researchers are sitting on pins and needles hoping more evidence will reveal itself
Water is an essential building block for life. Therefore, with this information, scientists think that finding life on Mars may be possible.
However, confirming the existence of water may take some time. Scientists have other missions already planned before they take on
finding water on Mars
Why are the lines on the slopes of Mars compared to plant vines?
A. to show how the lines spread across the slopes
B. to describe the harsh climate on the planet
c. to highlight the different varieties of plants
D. to explain how plants can survive on Mars

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While orbiting Mars, NASA's Mars Reconnaissance Orbiter took images of the planet's surface. In thos...
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