In a landmark epidemiological study of ambient air pollution and mortality in six U. S. cities, Dockery et al. (1993) found a higher mortality rate in the city with the highest pollution compared to the city with the lowest 2.6% 26% 260% 2600%

26%

Explanation:Mortality rate is another way to say death rate. It is a measure of the number of deaths due to a particular cause in a population.

Mortality rate is the total number of deaths from a particular cause in 1year ... the higher the death rate and the lower the birth rate, and the more likely the population will decline.

music always has an important role in culture and societies, infact for example rock’n roll music has conditioned different areas of pop culture above all in the 60s. in the modern american society its role is different.

unfortunately many think about how some unfortunate events happened to the columbine high school shootings can be related to rock music just because the teenagers involved listened to this kind of music.

i think that we can valorize the change to take refuge in this genre of music to keep on in everyday life, teenagers are comfortable when they can listen to a song about a specific problem. realizing that someone else is living your personal drama too can them to feel less lonely nowadays.

the correct answer is:   the domino theory states that if one country in a region came under the influence of communism, then the surrounding countries would follow in a domino effect.