Question: The city shares a 15-mile (24 km) border with Mexico that includes two border crossings. San Diego hosts the busiest international border crossing in the world, in the San Ysidro neighborhood at the San Ysidro Port of Entry. A second, primarily commercial border crossing operates in the Otay Mesa area; it is the largest commercial crossing on the California-Baja California border and handles the third-highest volume of trucks and dollar value of trade among all United States-Mexico land crossings.
Is there an answer to this question: How long is the border that San Francisco shares with Mexico?

Answer: unanswerable


Question: Corruption facilitates environmental destruction. While corrupt societies may have formal legislation to protect the environment, it cannot be enforced if officials can easily be bribed. The same applies to social rights worker protection, unionization prevention, and child labor. Violation of these laws rights enables corrupt countries to gain illegitimate economic advantage in the international market.
Is there an answer to this question: Corruption aids what as far as the environment is concerned?

Answer: environmental destruction


Question: As of 2008[update], the population was 47.5% male and 52.5% female. The population was made up of 44,032 Swiss men (35.4% of the population) and 15,092 (12.1%) non-Swiss men. There were 51,531 Swiss women (41.4%) and 13,726 (11.0%) non-Swiss women. Of the population in the municipality, 39,008 or about 30.3% were born in Bern and lived there in 2000. There were 27,573 or 21.4% who were born in the same canton, while 25,818 or 20.1% were born somewhere else in Switzerland, and 27,812 or 21.6% were born outside of Switzerland.
Is there an answer to this question: How many Swiss men live in Bern?

Answer: 35.4%


Question: The end of adolescence and the beginning of adulthood varies by country and by function. Furthermore, even within a single nation state or culture there can be different ages at which an individual is considered (chronologically and legally) mature enough for society to entrust them with certain privileges and responsibilities. Such milestones include driving a vehicle, having legal sexual relations, serving in the armed forces or on a jury, purchasing and drinking alcohol, voting, entering into contracts, finishing certain levels of education, and marriage. Adolescence is usually accompanied by an increased independence allowed by the parents or legal guardians, including less supervision as compared to preadolescence.
Is there an answer to this question: Is adolescence usually accompanied by increased parental supervision or increased independence?

Answer:
independence