I believe the correct answer is B, correct me if im wrong
Answer:
have fallen by more than one-half.
Explanation:
Thick, noticeable smog in many of the cities and manufacturing centers of the United States helped bring the 1970 e Clean Air Act to spur passage at the height of the national environmental movement. The ensuing modifications were intended to enhance its effectiveness and address newly recognized problems of air pollution such as acid rain and stratospheric ozone layer damage. The Clean Air Act allows EPA to set national environmental air quality levels for certain specific and prevalent contaminants, based on the latest research, to protect public health and welfare nationally. Certain main regulations are intended to reduce the rise in emissions from increasing motor vehicle numbers and new manufacturing plants.
The North Koreans almost defeat South Korea, by forcing them onto the Pusan Perimeter.
Answer:
I would say E and/or F.
Explanation:
If someone is or was a member of the armed forces they have firsthand knowledge of what is going on in the military and knows what kind of leadership they need/want. Understanding government is also important because a good voter needs to know what position they are voting a person into.
Technological advancements that were significant included;
• Development of microliths, that were very small stones which were mounted together on a shaft to form a serrated edge.
• Development of polished stones that was present in Mesolithic assemblages
The primary culture that was significant during the Mesolithic period was characterized by;
• Adaptation of hunter-gatherer lifestyle instead of group hunting.
• Development of sophisticated lithic tools and weapons which were typically smaller in size
• The use of pottery and textiles
• Use of simple ways to conduct burials