I think that it is monism I'm not for sure
Answer:
Coins are as important as the inscription in history. They confirm the information derived from literature. They are of various metals: gold, silver, copper, or alloy and contain legends or simple marks. Those with dates are probably very valuable for the framework of Indian chronology.
I think This is the ans but I am not sure.
(If this isn't right then I am very very sorry)
<span>The Sahara's size and harsh terrain limited movement. Camels could carry huge loads up to 5000 punds and could go 20-30 miles often without water. Camels were much better suited to the desert travel than horses. This made new trade routes possible.</span>