How could shifts in the physical environment have caused major changes in early civilizations? select all that apply. a. too much or too little rain may have ruined crops, creating food shortages. a. earthquakes or erupting volcanoes may have destroyed communities. a. buildup of silt could have made rivers less salty, increasing the supply of clean water. a. long-term farming could have improved the quality of the soil, increasing crop yields.

there is no chart here so no one can answer this.

it was certainly a debatable decision, mainly because it was based primarily on political - and not on legal or social - views. since the congress at that time was led by members of the republican party, and the territory that the tribes wanted to turn into an exclusively indian state was predominantly democratic, the proposal (as expressed in the constitution) did not succeed, but the constitution itself proved to be of crucial importance in the creation of the state of oklahoma, and, most importantly, it guaranteed the involvement of representatives of the indian tribes in the government of the future joint state.  

as a member of congress, i would have voted to ratify the constitution, or at least to have it tabled. ignoring it was an interested and partial decision.