1920’s - 1930’s i believe is the correct answer
Answer:
D.
<em>It addresses that there are many different social groups, people in different grades that you wouldn't have normally not meet and it also has an easy solution to fix for everyone so, no one is feels singled out or lonely because of it. </em>
Answer:
10 MJ i am pretty sure
Explanation:
One joule represents a relatively small amount of energy; it takes roughly 100,000 J (10^5 J) to heat a cup of water from room temperature to its boiling point under standard conditions. Often, kilojoules (kJ) are used, kJ = 10^3 J.