Which of the following could be done with an islamic land in 662 ad that could not have been done within an islamic land in 632 ad

Me i really need which of these was an accomplishment of the han dynasty? the invention of the seismograph finding a water passage to europe the invention of the ballpoint pen the invention of the abacus

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3.3.6 practice: comparing the branches describe at least one way in which the executive branch is able to influence the actions of the legislative branch and at least one way in which it is able to influence the actions of the judicial branch