Electric appliances first began to change american homes in the 1920s. true false

true

Explanation: the fridge was introduced in the 20's, and the freezer in the 30's.

The correct answer is true.

Explanation:

Most of the devices and appliances commonly used in America, started to be used in 1920. For instance the electric iron, the electronic toaster and the waffle iron started to be sold.  Besides, the refrigeratos, the vacuum cleaner and the washing machines began to be popular.

it is important to mention that by 1924 2/3 of the American houses had electricity. After the 1920's, a lot of inventions have been created, and the old ones have been innovated.

c

explanation:

it was the "4. potsdam" conference that demanded the unconditional surrender of japan, since it was clear that the japanese would continue to find until the very last man otherwise.