<span>The social changes which occurred after World War I were:
</span><span>
Increased mobility through technology.</span>
New roles for women.<span>
</span>Breaks with tradition.
It was all because of the women efforts, they received the right to vote and many restrictions on women are taken off. Additionally, as a result of the social change in technology Tanks and Gas warfare technology were introduced.
They couldn't because of the Saratoga Campaign.
Usally a pool has 7.5 gallons. A gallon equals to 8.5( in weigth). 15 liters equals to 3.96258 In a gallon but in a square meter it equals to 1000 liters. I would say you estimate the 15 liters to a number that would calculate easier.
Your answer would be- 12.3
or a big number XD
Hope this helps
A democracy which Is the correct answer if you are talking about the 20th century