The problem: Answer a question about this article:
There are three classes of components for oxide glasses: network formers, intermediates, and modifiers. The network formers (silicon, boron, germanium) form a highly cross-linked network of chemical bonds. The intermediates (titanium, aluminium, zirconium, beryllium, magnesium, zinc) can act as both network formers and modifiers, according to the glass composition. The modifiers (calcium, lead, lithium, sodium, potassium) alter the network structure; they are usually present as ions, compensated by nearby non-bridging oxygen atoms, bound by one covalent bond to the glass network and holding one negative charge to compensate for the positive ion nearby. Some elements can play multiple roles; e.g. lead can act both as a network former (Pb4+ replacing Si4+), or as a modifier.
What type of component can both make and change networks?
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The answer: intermediates

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The mosaics of the Villa Romana del Casale near Piazza Armerina in Sicily are the largest collection of late Roman mosaics in situ in the world, and are protected as a UNESCO World Heritage Site. The large villa rustica, which was probably owned by Emperor Maximian, was built largely in the early 4th century. The mosaics were covered and protected for 700 years by a landslide that occurred in the 12th Century. The most important pieces are the Circus Scene, the 64m long Great Hunting Scene, the Little Hunt, the Labours of Hercules and the famous Bikini Girls, showing women undertaking a range of sporting activities in garments that resemble 20th Century bikinis. The peristyle, the imperial apartments and the thermae were also decorated with ornamental and mythological mosaics. Other important examples of Roman mosaic art in Sicily were unearthed on the Piazza Vittoria in Palermo where two houses were discovered. The most important scenes there depicted Orpheus, Alexander the Great's Hunt and the Four Seasons.
What caused the mosaics at the villa rustica to be protected for centuries?
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The answer: a landslide

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The oldest brain to have been discovered was in Armenia in the Areni-1 cave complex. The brain, estimated to be over 5,000 years old, was found in the skull of a 12 to 14-year-old girl. Although the brains were shriveled, they were well preserved due to the climate found inside the cave.
How old was the oldest brain discovered thought to be?
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The answer: over 5,000 years old

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Liberia has a long, rich history in textile arts and quilting, as the settlers brought with them their sewing and quilting skills. Liberia hosted National Fairs in 1857 and 1858 in which prizes were awarded for various needle arts. One of the most well-known Liberian quilters was Martha Ann Ricks, who presented a quilt featuring the famed Liberian coffee tree to Queen Victoria in 1892. When President Ellen Johnson Sirleaf moved into the Executive Mansion, she reportedly had a Liberian-made quilt installed in her presidential office.
Who did Martha Ann Ricks present the famed Liberian coffee tree to?
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The answer:
Queen Victoria