The correct answer for the question that is being presented above is this one: "Clean Air Act of 1970." Has resulted in significant climate changes. User: The Clean Air Act of 1970 set guidelines on the amount of air pollution considered acceptable.
Answer:
Early cities developed in a number of regions, from Mesopotamia to Asia to the Americas. The very first cities were founded in Mesopotamia after the Neolithic Revolution, around 7500 BCE. Mesopotamian cities included Eridu, Uruk, and Ur. Early cities also arose in the Indus Valley and ancient China. Among the early Old World cities, one of the largest was Mohenjo-daro, located in the Indus Valley (present-day Pakistan); it existed from about 2600 BCE, and had a population of 50,000 or more. In the ancient Americas, the earliest cities were built in the Andes and Mesoamerica, and flourished between the 30th century BCE and the 18th century BCE.
Explanation:
I am going to say True, I mean usually when you put in effort you get the results you want.
<span>The oil that flows from the kingdom of Saudi Arabia over decades employing a majority of working Saudis was</span> first discovered by the Americans in 1938. The first striking of oil in commercial quantities at well No. 7 happened in Dammam, in what is now modern-day Dhahran<span>.</span>