4th Amendment uses deadly force i believe
Samuel <span>Slater</span> and Francis Cabot Lowell I think.
Answer:
Japan decided to expand it's empire to obtain resources.
Explanation:
Japan was forced to trade with foreign powers, but didn't have many resources to trade, so Japan was essentially forced to trade things it didn't have. Because of this, Japan was forced to obtain resources. The best way to obtain resources is to invade a neighboring country that does have those resources.
Astronomers could use radio telescopes to accurately map the positions of these O and B stars and use the Doppler shifts of the radio spectrum to determine their rates of motion. When they did this with many stars, they were able to produce combined radio and optical maps of the Milky Way's spiral arms.
