What is one way the world has changed in recent decades as a result of science and technology?
life expectancies are higher due to medical advances.
communications are slower as a result of increased usage.
standards of living are lower because machines have taken over jobs.
space exploration has halted since the end of the cold war.

The correct answer is A) life expectancies are higher due to medical advances.

One way that the world has changed in recent decades as a result of science and technology is that life expectancies are higher due to medical advances.

Human life expand has increased due to technological advancements. Nowadays is common to find people living until 85 to 90 years. Better medicines, better treatments, and good nutrition have helped humans to live more and the most important thing, with a better quality of life. Technology has created new tools, hardware, and software that is used in hospitals to treat diseases and improving surgical procedures.

after the civil war, and with the termination of slavery, the south was faced with a big problem; what was supposed to happen and how they were supposed to deal with the freedom and the rights that black people and freed slaves had gained as a result of the north defeating the south and forcing the end of slavery. first, most, if not all, of the workforce of the south came from slaves and they did not have an option to replace the loss of said workforce. second, particularly in the south, people were convinced that black people were lesser, less intelligent, less capable and less smart than whites. this posed a huge problem for them. also, southerners were faced with another issue; freed slaves now had a say in how their lives would be lived and the right to politically choose the way they would be governed. people in the south did not want to accept this, none of this and this opposition and the conflicts that arose from it, not to mention the afereffects of the war, forced the congress of the time to enact and enforce the reconstruction plans that had been proposed by president andrew johnson.

the colonial period, since this was a time of mass immigration from a variety of people from europe.