Answer:
Both - Culture could be exchanged.
Both - Religious beliefs were exchanged.
Land - Small items could be transported.
Sea - Large items could be transported.
Land - Camels were used.
Sea - Ships were used.
Sea - Trade took place with coastal towns.
Land - Trade took place with inland towns.
Please let me know if I am right!
Step-by-step explanation:
Hope this helps! :)