Read the paragraph. the industrial revolution produced both positive and negative results. the greatest positive result was that it made many goods more plentiful. this availability, in turn, made the goods cheaper. factories also created jobs for many people. even though most of these jobs did not pay well, many people moved to the cities to work. unfortunately, this led to overcrowding. equally unfortunately, the same factories that produced jobs also produced pollution. which of the following lists the pros named in this paragraph? plentiful goods, cheap goods, more jobs cheap goods, more jobs, pollution poor jobs, cheap goods, plentiful goods poor jobs, overcrowding, pollution

The pros would be plentiful goods, cheap goods, and more jobs.

plentiful goods, cheap goods, more jobs

Explanation:

The paragraph is organized in a way that the pros are listed first, first the author mentions the "greatest positive result", plentiful goods. This first advantage lead to the second one, as the goods were more available they became cheaper, so cheaper goods is the second one. The third one is derived from the previous ones, as more goods were produced and bought, more factories were needed, and more jobes created. This is the third possitive aspect.

The word "unfortunately" is used to start the list of the cons.

answer:   migrations were important in the neolithic period. "two major migrations passing through southeastern europe were confirmed by the means of archaeo-genetic studies."

the first migration was the early neolithic period -- 6,000 before common era (bce) -- when the first farmers, from anatolia -- asia minor -- spread through europe. the second migration occurred during the early bronze age (3,000-2,500 bce) when the so-called "steppe population," from the eurasian steppe, replaced much of northern europe's previous population.

the first farmers of northern and western europe passed through southeastern europe with limited hunter-gatherer genetic admixture, which occurs when two or more previously isolated populations begin interbreeding. however, some groups that remained mixed extensively -- without the male-biased, hunter-gatherer admixture that prevailed later in the north and west, according to latest discoveries. southeastern europe continued to be a nexus between east and west, with intermittent genetic contact with the steppe people up to 2,000 years before the migrations that replaced much of northern europe's population.

"in some places, hunter-gatherers and incoming farmers seem to have mixed very quickly," says iain mathieson, a geneticist at the university of pennsylvania, who was first author of the paper. "but, mostly, the two groups remained isolated, at least for the first few hundred years. these hunter-gatherers had been living there for thousands of years, and it must have been quite a shock to have these new people show up -- with a completely different lifestyle and appearance."