試題詳解

18. According to the passage, why is extending solar record important?
(A) It would help establish whether the data supporting the existence of the Maunder Minimum is reliable.
(B) It would allow scientists to establish whether the warming trends owe to industrialization or to natural factors existing prior to industrialization.
(C) It could possibly corroborate the information on sunspots provided by satellites.
(D) It would determine the extent to which sunspots plays a role in increasing the sun’s irradiance.