The 1920 United States census recorded that 51.2% of the population was living in urban areas. Since the census is taken only every ten years, we don't really have great data for the years in between, so 1920 is the closest we have to a year where the urban/rural split was roughly 50/50.
The Montreal Protocol, the Clean Air Act , Clean Water Act are taken to protect the environment.
Explanation:
Private citizens can play important role in managing the environment such as , firstly they can reduce the products, reuse the products and the recycle the products. Plastic bottles will be a good example of reusing of products, grocery bags can be a good example of recycling products and use of cycle instead of motor vehicles can be used as reduction of products because if we reduce use of motor vehicles it will help in reducing pollution.
Private citizens can try to conserve water so that the ground water level do not reduce. Private citizens should be rational , provide education to people so that they can understand the good and bad things. Private citizens should become proper volunteers to look after the environment. They should plant more trees to keep our environment clean.
Answer:
The entire ship was admitted through U.S. Immigration, though many refugees chose to stay in Cuba.