Henry1.Is "welcoming to life" same as "welcoming life"? If not, what's the difference? They are not the same. In the excerpt below, "welcome life" would not make sense. I also feel that "conducive to life" would be a better choice than "welcoming to life."
2.Does this "below 50 degrees" refer to "below minus 50 degrees Celcius" or "below 50 degrees Farenheit"? It it is the latter, my conversion result doesn't show so much low temperature, so I guess it's the former, then why was "minus" omitted? You need to ask the author. This is totally ambiguous and it is impossible to discern what he or she meant.
gu135)At first sight, Mars does not appear very welcoming to life. It has very little oxygen and water, and the temperature at night is below 50 degrees...
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