Question: Read this and answer the question

The quality of a partial vacuum refers to how closely it approaches a perfect vacuum. Other things equal, lower gas pressure means higher-quality vacuum. For example, a typical vacuum cleaner produces enough suction to reduce air pressure by around 20%. Much higher-quality vacuums are possible. Ultra-high vacuum chambers, common in chemistry, physics, and engineering, operate below one trillionth (1012) of atmospheric pressure (100 nPa), and can reach around 100 particles/cm3. Outer space is an even higher-quality vacuum, with the equivalent of just a few hydrogen atoms per cubic meter on average. According to modern understanding, even if all matter could be removed from a volume, it would still not be "empty" due to vacuum fluctuations, dark energy, transiting gamma rays, cosmic rays, neutrinos, and other phenomena in quantum physics. In the electromagnetism in the 19th century, vacuum was thought to be filled with a medium called aether. In modern particle physics, the vacuum state is considered the ground state of matter.

If all matter is removed from a vacuum, would it be empty space?
Answer: it would still not be "empty"
Question: Read this and answer the question

The abbey's two western towers were built between 1722 and 1745 by Nicholas Hawksmoor, constructed from Portland stone to an early example of a Gothic Revival design. Purbeck marble was used for the walls and the floors of Westminster Abbey, even though the various tombstones are made of different types of marble. Further rebuilding and restoration occurred in the 19th century under Sir George Gilbert Scott.

Who built the western towers of the abbey?
Answer: Nicholas Hawksmoor
Question: Read this and answer the question

As sun-god and god of light, Apollo was also known by the epithets Aegletes (/litiz/ -GLEE-teez; , Aigletes, from , "light of the sun"), Helius (/hilis/ HEE-lee-s; , Helios, literally "sun"), Phanaeus (/fnis/ f-NEE-s; , Phanaios, literally "giving or bringing light"), and Lyceus (/lasis/ ly-SEE-s; , Lykeios, from Proto-Greek *, "light"). The meaning of the epithet "Lyceus" later became associated with Apollo's mother Leto, who was the patron goddess of Lycia () and who was identified with the wolf (), earning him the epithets Lycegenes (/lasdniz/ ly-SEJ--neez; , Lukegenes, literally "born of a wolf" or "born of Lycia") and Lycoctonus (/lakktns/ ly-KOK-t-ns; , Lykoktonos, from , "wolf", and , "to kill"). As god of the sun, Apollo was called Sol (/sl/ SOL, literally "sun" in Latin) by the Romans.

Since Apollo was known as god of the sun, what was another name for Apollo?
Answer:
Sol