question: OPTIONS:
- yes
- no
The San Diego River runs through the middle of San Diego from east to west, creating a river valley which serves to divide the city into northern and southern segments.
What divides the city's northern and southern segments?

answer: yes

question: OPTIONS:
- yes
- no
However, to produce a bale of cotton required over 600 hours of human labor, making large-scale production uneconomical in the United States, even with the use of humans as slave labor.
Before the use of the cotton gin, how was cotton separated?

answer: no

question: OPTIONS:
- yes
- no
As some szlachta were poorer than some non-noble gentry, some particularly impoverished szlachta were forced to become tenants of the wealthier gentry.
What ultimately determined nobility?

answer: no

question: OPTIONS:
- yes
- no
Asphalt/bitumen was also used for flooring, paving and waterproofing of baths and swimming pools during the early 20th century, following similar trends in Europe.
For what purpose was asphalt used in swimming pools and baths?

answer:
yes