Question: Solar water disinfection (SODIS) involves exposing water-filled plastic polyethylene terephthalate (PET) bottles to sunlight for several hours. Exposure times vary depending on weather and climate from a minimum of six hours to two days during fully overcast conditions. It is recommended by the World Health Organization as a viable method for household water treatment and safe storage. Over two million people in developing countries use this method for their daily drinking water.
Try to answer this question if possible: How long should the plastic bottles filled with water be exposed to sunlight during Solar water disinfection?
Answer: a minimum of six hours to two days during fully overcast conditions
Question: The house scene in cities such as Birmingham, Leeds, Sheffield and London were also provided with many underground Pirate Radio stations and DJs alike which helped bolster an already contagious, but otherwise ignored by the mainstream, music genre. The earliest and influential UK house and techno record labels such as Warp Records and Network Records (otherwise known as Kool Kat records) helped introduce American and later Italian dance music to Britain as well as promoting select UK dance music acts.
Try to answer this question if possible: What cities in the UK had major Warp scenes?
Answer: unanswerable
Question: The French Army consisted in peacetime of approximately 400,000 soldiers, some of them regulars, others conscripts who until 1869 served the comparatively long period of seven years with the colours. Some of them were veterans of previous French campaigns in the Crimean War, Algeria, the Franco-Austrian War in Italy, and in the Franco-Mexican War. However, following the "Seven Weeks War" between Prussia and Austria four years earlier, it had been calculated that the French Army could field only 288,000 men to face the Prussian Army when perhaps 1,000,000 would be required. Under Marshal Adolphe Niel, urgent reforms were made. Universal conscription (rather than by ballot, as previously) and a shorter period of service gave increased numbers of reservists, who would swell the army to a planned strength of 800,000 on mobilisation. Those who for any reason were not conscripted were to be enrolled in the Garde Mobile, a militia with a nominal strength of 400,000. However, the Franco-Prussian War broke out before these reforms could be completely implemented. The mobilisation of reservists was chaotic and resulted in large numbers of stragglers, while the Garde Mobile were generally untrained and often mutinous.
Try to answer this question if possible: Who reformed the low numbers of troops by implementing universal conscription?
Answer: Marshal Adolphe Niel
Question: Video games are playable on various versions of iPods. The original iPod had the game Brick (originally invented by Apple's co-founder Steve Wozniak) included as an easter egg hidden feature; later firmware versions added it as a menu option. Later revisions of the iPod added three more games: Parachute, Solitaire, and Music Quiz.
Try to answer this question if possible: What was included on the first iPod?
Answer:
Brick