‘ NASA recently collected data from the Mars Curiosity rover. The data were used to estimate the radiation impact on

‘ NASA recently collected data from the Mars Curiosity rover. The data were used to estimate the radiation impact on an astronaut traveling to and from Mars for 365 days and spending 500
days on the surface. It was determined that during that trip an astronaut would get a radiation dose that was about five percent of what he or she would get over a lifetime on Earth. That significantly increases the risk of cancer.’ In the paragraph above, mark specific numbers that identify amounts.What purpose does the use of specific numbers serve?

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