What geographic challenge was shared by noth the trans-saharan trade route and the silk road ?
a. deserts
b. mountains
c. narrow waterways
d. unpredictable oceans

The geographic challenge faced by both the trans-saharan trade route and the silk road is the presence of the deserts [A]

Explanation:

The silk road  had white hot sand dunes forming the desert and brutal winds while the Trans-Saharan route also had hot sand dunes as well as brutal winds therefore they both have the desert and the winds as part of there geographic challenge

explanation:

i think it is in quadrant 4.

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in 1859, brown and 21 of his followers attacked and occupied the federal arsenal in harper's ferry. their goal was to capture supplies and use them to arm a slave rebellion. brown was captured during the raid and later hanged, but not before becoming an anti-slavery icon. abolitionist and insurrectionist

explanation: