Assuming you're referring to the Palestine Riots of 1929, the best option would be "religion," since the main cause was a rivalry between Muslims and Jews of access to the West Wall.
I'm not so sure but here's what I know. The ancient Egyptians used mud mixed with straw to build the blocks for the pemids and they used the Nile river for there crops becase it was rich and when it flooded the minerals whould come into the soil. Hope This Helps
Answer:
I believe it was the Indian tribes
Explanation:
he spoke with congress to put the Indian removal act into place around 1838
which led to the trail of tears
