help with #1,2, and 3.
Will mark brainleast if the answer is correct

#1. how did alliance systems help bring about war?
#2. How did trench warfare make offensives long and deadly?
#3. How did the alliance system help bring about war?

#1 / #3

The alliance system caused the World War I to escalate from a regional conflict into a global war. Two major alliances existed in Europe prior to World War I. Austria and Serbia were allied with Germany and Russia respectively, leading Germany and Russia to declare war on each other.

#2

Trench warfare made offensives long and deadly by the nature of it. First, soldiers shelled the enemy trenches day after day. Second, some soldiers charged to attack the enemy, and sometimes, they made it. Trench foot, trench fever, dysentery, and cholera could inflict casualties as readily as any enemy. Rats, flies, and lice were also commonplace.

it allows businesses to raise prices on basic goods. it allows consumers to spend more money on products. it increases government revenue to fund public projects. it provides more money for government assistance programs.

explanation:

in his book, the riddle of the rosetta stone, james giblin talks about how there was a young british polymath and physician named thomas young who made a lot of advances on the deciphering of the rosetta stone. he says that even though young made a lot of mistakes because he was working under false assumptions, he also made huge contributions like deciphering three out of the seven symbols (more than anyone else before him). young published his findings and continued his good work but he wasn't able to progress much further due to some unfavorable situations, he still laid the basis for many other scholars and of course for the man who has been generally known to have deciphered it, jean-françois champollion