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At the beginning of the Han dynasty, every male commoner aged twenty-three was liable for conscription into the military. The minimum age for the military draft was reduced to twenty after Emperor Zhao's (r. 8774 BC) reign. Conscripted soldiers underwent one year of training and one year of service as non-professional soldiers. The year of training was served in one of three branches of the armed forces: infantry, cavalry or navy. The year of active service was served either on the frontier, in a king's court or under the Minister of the Guards in the capital. A small professional (paid) standing army was stationed near the capital.
At what age could a male common expect to be conscripted into the military?
A: twenty-three

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According to recent estimates, 50% of the population adheres to Christianity, Islam 48%, while 2% of the population follows other religions including traditional African religion and animism. According to a study made by Pew Research Center, 63% adheres to Christianity and 36% adheres to Islam. Since May 2002, the government of Eritrea has officially recognized the Eritrean Orthodox Tewahedo Church (Oriental Orthodox), Sunni Islam, the Eritrean Catholic Church (a Metropolitanate sui juris) and the Evangelical Lutheran church. All other faiths and denominations are required to undergo a registration process. Among other things, the government's registration system requires religious groups to submit personal information on their membership to be allowed to worship.
What do unrecognized faiths and denominations in Eritrea have to undergo?
A: a registration process

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Equivalently, the smallness of the Planck constant reflects the fact that everyday objects and systems are made of a large number of particles. For example, green light with a wavelength of 555 nanometres (the approximate wavelength to which human eyes are most sensitive) has a frequency of 7014540000000000000♠️540 THz (7014540000000000000♠️5401012 Hz). Each photon has an energy E = hf = 6981358000000000000♠️3.581019 J. That is a very small amount of energy in terms of everyday experience, but everyday experience is not concerned with individual photons any more than with individual atoms or molecules. An amount of light compatible with everyday experience is the energy of one mole of photons; its energy can be computed by multiplying the photon energy by the Avogadro constant, NA 7023602200000000000♠️6.0221023 mol1. The result is that green light of wavelength 555 nm has an energy of 7005216000000000000♠️216 kJ/mol, a typical energy of everyday life.
What is the frequency of the light to which the human eye is most sensitive?
A: 7014540000000000000♠️540 THz

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The BYU Broadcasting Technical Operations Center is an HD production and distribution facility that is home to local PBS affiliate KBYU-TV, local classical music station KBYU-FM Classical 89, BYU Radio, BYU Radio Instrumental, BYU Radio International, BYUtv and BYU Television International with content in Spanish and Portuguese (both available via terrestrial, satellite, and internet signals). BYUtv is also available via cable throughout some areas of the United States. The BYU Broadcasting Technical Operations Center is home to three television production studios, two television control rooms, radio studios, radio performance space, and master control operations.
How many radio studios is BYU BYU Broadcasting Technical Operations Center home to?
A:
two