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While Paris has some of the richest neighbourhoods in France, it also has some of the poorest, mostly on the eastern side of the city. In 2012, 14 percent of households in the city earned less than €977 per month, the official poverty line. Twenty-five percent of residents in the 19th arrondissement lived below the poverty line; 24 percent in the 18th, 22 percent in the 20th and 18 percent in the 10th. In the city's wealthiest neighbourhood, the 7th arrondissement, 7 percent lived below the poverty line; 8 percent in the 6th arrondissement; and 9 percent in the 16th arrondissement.

What percentage of people lived below the poverty line in Paris' wealthiest neighborhood?
Answer: 7
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PAL LaserDiscs have a slightly longer playing time than NTSC discs, but have fewer audio options. PAL discs only have two audio tracks, consisting of either two analog-only tracks on older PAL LDs, or two digital-only tracks on newer discs. In comparison, later NTSC LDs are capable of carrying four tracks (two analog and two digital). On certain releases, one of the analog tracks is used to carry a modulated AC-3 signal for 5.1 channel audio (for decoding and playback by newer LD players with an "AC-3 RF" output). However, older NTSC LDs made before 1984 (such as the original DiscoVision discs) only have two analog audio tracks.

Which has a longer playing time: PAL LaserDiscs or NTSC discs?
Answer: PAL LaserDiscs
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Certain genera of Gram-positive bacteria, such as Bacillus, Clostridium, Sporohalobacter, Anaerobacter, and Heliobacterium, can form highly resistant, dormant structures called endospores. In almost all cases, one endospore is formed and this is not a reproductive process, although Anaerobacter can make up to seven endospores in a single cell. Endospores have a central core of cytoplasm containing DNA and ribosomes surrounded by a cortex layer and protected by an impermeable and rigid coat. Dipicolinic acid is a chemical compound that composes 5% to 15% of the dry weight of bacterial spores. It is implicated as responsible for the heat resistance of the endospore.

What are ribosomes in endospores are enclosed in?
Answer:
cortex layer