Which of the followings events do historians credit as having started the atomic age? a. the first sustained and controlled nuclear chain reaction by enrico fermi in 1942 b. the first successful test of an atomic bomb in los alamos, new mexico c. the dropping if atomic bombs on 2 japanese cities at the end of ww|| d. the beginning of the nuclear arms race between the united states and the soviet union e. the application of nuclear technology to develop electricity for everyday use

what are local authorities doing to fix the problem

explanation: what are local authorities doing to fix the problem

a

explanation:

in the 1900s, the united states was still a largely agrarian society with a very fast growing industrial and manufactering sector.

the south of the country was the bread basket of the country with large farm lands making up a majority of the economy.

in the north and more specficially north-west, growing manufactering and export sector had made the united states into a powerful exporting country.

this peaked in the 50s and 60s when the united states became the largest economy in the world and the largest exporter.

today, the majority of the united states economy is made up of the services sector that includes banking, insurance, music, movies, hotels etc.