2. Which material required the most amount of water for the slope to fail? Which required the least? Why do you think this was the case?

i have to go with a for this one

the federal government of the united states was established by the constitution. us is a presidential republic. the president is head of state, head of government and of a two party legislative and electoral system. the supreme court balances the powers of the federal and the state government. yhe executive branch is headed by the oresident. there are two chambers of congress, the senate and the house of representatives. judicial power is exercised by the judicial branch (or judiciary), comprised of the supreme court and lower federal courts. the judiciary's function is to interpret the   constitution as well as the federal laws and regulations.

is there multiple choice or do you need like an essay answer?

could you go a bit more in depth with you question? it's quite hard to understand. as soon as you do that i will be glad to : )