You have to say what country you are in
Answer:
With the increase of autos in the 1950s, the demand for good quality roads increased. The federal government passed the Interstate Highway Act, 1956, pumping $1 billion a year into the construction of roads. By 1960, $2.9 billion was being used a year. The construction encouraged urban sprawl, as more people could now live in the suburbs and drive the freeways into the cities for work. But it also marked the beginning of the end to the city as a livable location. The middle class left the city to live in the suburbs, urban neighborhoods were split into isolated residential islands walled off from each other by concrete abutments of the freeways. this might not help but here
Explanation:
West African Kingdoms controlled mostly gold and lacked salt.
Answer:
The answer is identical twins. Studies examining certain traits are helping to clarify our understanding of the effects of nature and nurture. for example, because<u> identical twins</u> have the same genes, researchers often use them in studies that examine the relative influence of environment and heredity on these traits.
Explanation:
In the biological world, nature is a characteristic that is present in an organism due to the genetic inheritance of the organism from his/her parents. Nurture are the characteristics that are brought in an organism due to the impacts of the environment.
To study the differences between nature and nurture, twins are used for researches. As identical twins have the same genes so researches made on them can clearly determine the influence of the genetic traits as well as the environmental factors on an organism.
