Answer: 1920- Hair Dryer
1920- First radio station
1920- The Thompson Sub-Machine Gun
1920- The Band Aid
1921- First robot built
1923- Traffic Signal
1925- Mechanical Television
1926- Liquid Fueled Rockets
1928- Penicillin
1929- Car radio
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Explanation:
One way that the British government carried out the policy of mercantilism was by (4) requiring that most colonial trade occur within the British empire. This was the basic policy of colonial mercantilism, where colonies such as the United States could only trade with Great Britain, and was banned from trading with other colonial superpowers, such as the Netherlands, France and Spain.
Answer:
your answer good sir is 1 and 3
Explanation:
More grain was produced elsewhere as well as the fact that increasingly more grain was produced around the same demand of grain.