The answer is the Judicial Branch
<span>After the oil boom that happened in Pennsylvania during
1859. 3 other states started to discovered vast oil reserved in their country.
=> 2 of these countries are California and Texas.
=> For Texas, it was a great opportunity to be able to discover vast oil
reserves for their country because it helped a lot with their economic growth.
During 1940, Texas was already considered as the one of the biggest oil producing
state.
Later they were joined by Kansas, Oklahoma and Illinois.
</span>
Answer: Tanks. In 1914, the “war of movement” expected by most European generals settled down into an unexpected, and seemingly unwinnable, war of trenches, Flamethrowers, Poison Gas, Tracer Bullets,
Gear Air traffic control,
Depth Charges, and Hydrophones.
Explanation: Machine gun - The machine gun was improved during the war. It was made much lighter and easier to move around. Flame throwers - Flame throwers were used by the German Army on the western front in order to force the enemy out of their trenches. Chemical weapons - World War I also introduced chemical weapons to warfare. Hope this helps!