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Addition of lead(II) oxide lowers melting point, lowers viscosity of the melt, and increases refractive index. Lead oxide also facilitates solubility of other metal oxides and is used in colored glasses. The viscosity decrease of lead glass melt is very significant (roughly 100 times in comparison with soda glasses); this allows easier removal of bubbles and working at lower temperatures, hence its frequent use as an additive in vitreous enamels and glass solders. The high ionic radius of the Pb2+ ion renders it highly immobile in the matrix and hinders the movement of other ions; lead glasses therefore have high electrical resistance, about two orders of magnitude higher than soda-lime glass (108.5 vs 106.5 Ohmcm, DC at 250 C). For more details, see lead glass.
Lead oxide makes it easier to dissolve what?
A: other metal oxides

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After reconquering Estonia and Latvia in 1944, the Russian SFSR annexed their easternmost territories around Ivangorod and within the modern Pechorsky and Pytalovsky Districts in 1944-1945.
Along with Estonia, what country was taken over by the Russian SFSR in 1944?
A: Latvia

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Xinhua and CCTV quoted relay spectators who condemned the protests, to a greater extent than most Western media, but did not quote any alternate viewpoints, providing no coverage of support for the protests by some ordinary citizens in Western countries. It quoted athletes who expressed pride at taking part in the relays, to a greater extent than Western media, but not those who, like Marie-Jose Perec, expressed understanding and support for the protestors. The Beijing Organising Committee for the Games mentioned the "smiling faces of the elderly, children and the artists on the streets", of cheering and supportive Londoners. Xinhua said that protesters were "radicals" who "trampled human rights" and whose activities were condemned by "the people of the world who cordially love the Olympic spirit".
Which publication said that protesters were trampling human rights?
A: Xinhua

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Present-day statutes from across the nation use the same words and phrases, requiring modern executions to take place within a wall or enclosure to exclude public view. Connecticut General Statute 54100 requires death sentences to be conducted in an "enclosure" which "shall be so constructed as to exclude public view." Kentucky Revised Statute 431.220 and Missouri Revised Statute 546.730 contain substantially identical language. New Mexico's former death penalty, since repealed, see N.M. Stat. 31-14-12, required executions be conducted in a "room or place enclosed from public view." Similarly, a dormant Massachusetts law, see Mass. Gen. Law ch. 279 60, required executions to take place "within an enclosure or building." North Carolina General Statute 15-188 requires death sentences to be executed "within the walls" of the penitentiary, as do Oklahoma Statute Title 22 1015 and Montana Code 46-19-103. Ohio Revised Code 2949.22 requires that "[t]he enclosure shall exclude public view." Similarly, Tennessee Code 40-23-116 requires "an enclosure" for "strict seclusion and privacy." United States Code Title 18 3596 and the Code of Federal Regulations 28 CFR 26.4 limit the witnesses permitted at federal executions.
What state's law says that death sentences must not take place in an "enclosure"?
A:
unanswerable