Answer:
The effects of the oil boom in Kilgore, Texas helped relieve the effects of the Depression in the area. Oil discovery on the region led to rapid industrialization and more revenue which helped in the development of other sectors such as transportation, education and other social amenities.
The set back was mainly pollution. The industrial processing of the oil led to air pollution from the industries due to gas flaring. Water pollution was also common and the waters in the area are regarded as one of the most polluted in the United States. This was because the several sea ports built in the area for easy transportation of the oil had some oil seeping out into the water during loading and offloading. The land which had oil with neighboring water bodies weren't spared too.
The French Revolution was a necessary event which lead to positive impacts is correct
As It overthrowed the king(as that king didn’t cared about the common people or the people belonging to the third estate in the France) the king was Louis XVI
Also it helped to overthrow he the estates system in the France.
It also helped to free slaves
Hope I helps you!
Possession of nuclear weapons and infiltrations of communists
Middle Ages.
The period of European history extending from about 500 to 1400–1500 ce is traditionally known as the Middle Ages. The term was first used by 15th-century scholars to designate the period between their own time and the fall of the Western Roman Empire.
Got this Google I hope this helps :)