Question 400-30

1.2 Command of Evidence - Quantitative evidence: reading tables and graphs
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4003002001000Number of condors2014201520162017201820192020California Condor Populations 20142020Year captive wild
  • The following 2 lines are shown:
    • captive
    • wild
  • The captive line:
    • Begins at 2014, 193 condors
    • Falls gradually to 2015, 167 condors
    • Rises gradually to 2016, 170 condors
    • Rises gradually to 2017, 173 condors
    • Rises gradually to 2018, 176 condors
    • Rises gradually to 2019, 181 condors
    • Falls gradually to 2020, 175 condors
  • The wild line:
    • Begins at 2014, 228 condors
    • Rises gradually to 2015, 268 condors
    • Rises gradually to 2016, 276 condors
    • Rises gradually to 2017, 290 condors
    • Rises gradually to 2018, 312 condors
    • Rises gradually to 2019, 337 condors
    • Falls gradually to 2020, 329 condors

The California Condor Recovery Program is working to protect this large, rare American vulture from extinction. The program captured 27 wild condors in 1987 in order to protect and breed them. Captive birds have been reintroduced into the wild since 1992. Although the California condor is still a rare species, many biologists claim that the program has been reasonably successful.

Which choice best describes data from the graph that support the biologists’ claim?

A.

The number of captive California condors steadily decreased between 2014 and 2020.

B.

The numbers of California condors living both in captivity and in the wild decreased only slightly from 2019 to 2020.

C.

The difference between the number of captive and wild California condors remained relatively steady between 2014 and 2017. 

D.

The number of wild California condors increased overall from 2014 to 2020 and exceeded the number of those living in captivity.