The correct answer is A) President Eisenhower's heart attack and the publication of a study reporting that American children were less fit than European children.
The two events in the 1950s that raised the attention for improving the fitness levels of U.S. children were President Eisenhower's heart attack and the publication of a study reporting that American children were less fit than European children.
After World War II, the US government started to pay attention to the physical fitness of Americans. The young Americans started to gain weight and were out of shape. In the military, officers noted that many soldiers were out of shape in WWII and the Korean War, and officers did not like that. Then, it came the publication of an international study that reported that American children were less fit than European children, and that worried President Eisenhower who signed Executive Order 10673 of July 16, 1956: the creation of the President's Council of Youth Fitness.
It is necessary to conserve water because:
<span>It will help to protect the environment. By conserving water, you save it for fish and animals that depend on it.
It will protect drinking water supplies
</span>It will help to eliminate water shortages resulting from over-consumption.
Answer:
Concentric circle model
Explanation:
The concentric model was proposed by Burgess. This model defines different social people to live in an urban area. This is a very famous model related to metropolitan cities for development. Many of the social groups are based on their socioeconomic status that stands from central part distance to downtown.
This model is called the concentric model because it defined all social groups in the shapes of the ring from the center part to the outer part. It is also called the Burgess model. The human geography and urban geography involve it in the development of urban metropolitan cities.