the aerospace security project at the center for strategic and international studies tracks the total number…

the aerospace security project at the center for strategic and international studies tracks the total number of human visits to space each year. a researcher studying trends in space exploration looks at the data from 2009 to 2021. the researcher concludes that overall, the number of annual human visits to space fell significantly during that period. which choice most effectively uses data from the graph to justify the underlined claim? choose 1 answer: a the number of annual human visits to space remained constant between 2012 and 2013, between 2014 and 2015, and between 2018 and 2019. b in 2009, there were over 40 human visits to space, but in 2021, there were less than 10 human visits to space. c there were more human visits to space in 2016 than there were in 2015, but there were fewer human visits to space in 2017 than in either 2016 or 2015. d from 2009 through 2011, the number of annual human visits to space increased from about 25 to about 46, but in 2012, the number fell back to about 25 and did not increase again.

the aerospace security project at the center for strategic and international studies tracks the total number of human visits to space each year. a researcher studying trends in space exploration looks at the data from 2009 to 2021. the researcher concludes that overall, the number of annual human visits to space fell significantly during that period. which choice most effectively uses data from the graph to justify the underlined claim? choose 1 answer: a the number of annual human visits to space remained constant between 2012 and 2013, between 2014 and 2015, and between 2018 and 2019. b in 2009, there were over 40 human visits to space, but in 2021, there were less than 10 human visits to space. c there were more human visits to space in 2016 than there were in 2015, but there were fewer human visits to space in 2017 than in either 2016 or 2015. d from 2009 through 2011, the number of annual human visits to space increased from about 25 to about 46, but in 2012, the number fell back to about 25 and did not increase again.

Answer

Brief Explanations:

  • Option A: Mentions periods of constancy, not a significant fall.
  • Option B: Compares 2009 (over 40) and 2021 (less than 10), showing a significant decrease.
  • Option C: Discusses fluctuations between 2015 - 2017, not overall significant fall.
  • Option D: Talks about an initial increase then a fall in 2012, but not overall trend from 2009 - 2021.

Answer:

B. In 2009, there were over 40 human visits to space, but in 2021, there were less than 10 human visits to space.