3. Which source would provide the most credible information about the daily life of factory workers during the 1880s?

A journal written by an employee at a factory

1.the population change is near or at replacement level.

4. the birth and death rates are balanced.

6. sweden is most likely a developed country.

2018 means 2018 ce or common era

there have been other eras too including bce, which included way more years.