Problem: Indigenous peoples of the Americas:

Natives of North America began practicing farming approximately 4,000 years ago, late in the Archaic period of North American cultures. Technology had advanced to the point that pottery was becoming common and the small-scale felling of trees had become feasible. Concurrently, the Archaic Indians began using fire in a controlled manner. Intentional burning of vegetation was used to mimic the effects of natural fires that tended to clear forest understories. It made travel easier and facilitated the growth of herbs and berry-producing plants, which were important for both food and medicines.

What was the intentional burning of vegetation intended to mimic?
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A: effects of natural fires

Problem: There are approximately ten times as many bacterial cells in the human flora as there are human cells in the body, with the largest number of the human flora being in the gut flora, and a large number on the skin. The vast majority of the bacteria in the body are rendered harmless by the protective effects of the immune system, and some are beneficial. However, several species of bacteria are pathogenic and cause infectious diseases, including cholera, syphilis, anthrax, leprosy, and bubonic plague. The most common fatal bacterial diseases are respiratory infections, with tuberculosis alone killing about 2 million people per year, mostly in sub-Saharan Africa. In developed countries, antibiotics are used to treat bacterial infections and are also used in farming, making antibiotic resistance a growing problem. In industry, bacteria are important in sewage treatment and the breakdown of oil spills, the production of cheese and yogurt through fermentation, and the recovery of gold, palladium, copper and other metals in the mining sector, as well as in biotechnology, and the manufacture of antibiotics and other chemicals.
What keeps bacteria at bay in human body?
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Answer: the immune system

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
BYU has 21 NCAA varsity teams. Nineteen of these teams played mainly in the Mountain West Conference from its inception in 1999 until the school left that conference in 2011. Prior to that time BYU teams competed in the Western Athletic Conference. All teams are named the "Cougars", and Cosmo the Cougar has been the school's mascot since 1953. The school's fight song is the Cougar Fight Song. Because many of its players serve on full-time missions for two years (men when they're 18, women when 19), BYU athletes are often older on average than other schools' players. The NCAA allows students to serve missions for two years without subtracting that time from their eligibility period. This has caused minor controversy, but is largely recognized as not lending the school any significant advantage, since players receive no athletic and little physical training during their missions. BYU has also received attention from sports networks for refusal to play games on Sunday, as well as expelling players due to honor code violations. Beginning in the 2011 season, BYU football competes in college football as an independent. In addition, most other sports now compete in the West Coast Conference. Teams in swimming and diving and indoor track and field for both men and women joined the men's volleyball program in the Mountain Pacific Sports Federation. For outdoor track and field, the Cougars became an Independent. Softball returned to the Western Athletic Conference, but spent only one season in the WAC; the team moved to the Pacific Coast Softball Conference after the 2012 season. The softball program may move again after the 2013 season; the July 2013 return of Pacific to the WCC will enable that conference to add softball as an official sport.
How many NCAA varsity teams does BYU have?
A: 21

Context and question: Sheldon Pollock argues that "most observers would agree that, in some crucial way, Sanskrit is dead".:393 Pollock has further argued that, while Sanskrit continued to be used in literary cultures in India, it was never adapted to express the changing forms of subjectivity and sociality as embodied and conceptualised in the modern age.:416 Instead, it was reduced to "reinscription and restatements" of ideas already explored, and any creativity was restricted to hymns and verses.:398 A notable exception are the military references of Nilakantha Caturdhara's 17th-century commentary on the Mahabharata.
What is Sanskrit not able to express?
Answer: the modern age

Question: The professionals soon displaced the amateur ex-Public schoolboys. Bermuda's role as the primary Royal Navy base in the Western Hemisphere, with an army garrison to match, ensured that the naval and military officers quickly introduced the newly formalised sports to Bermuda, including cricket, football, Rugby football, and even tennis and rowing (rowing did not adapt well from British rivers to the stormy Atlantic. The officers soon switched to sail racing, founding the Royal Bermuda Yacht Club). Once these sports reached Bermuda, they were eagerly adopted by Bermudians.
Is there an answer to this question: Which sport did not transfer well to Bermuda?

Answer: rowing

Question: High-gain antennas have the advantage of longer range and better signal quality, but must be aimed carefully at the other antenna. An example of a high-gain antenna is a parabolic dish such as a satellite television antenna. Low-gain antennas have shorter range, but the orientation of the antenna is relatively unimportant. An example of a low-gain antenna is the whip antenna found on portable radios and cordless phones. Antenna gain should not be confused with amplifier gain, a separate parameter measuring the increase in signal power due to an amplifying device.
Is there an answer to this question: Antennas with higher gain have what positive feature?

Answer:
longer range