Question: The early Islamic literature indicates that the conquest of India was one of the very early ambitions of the Muslims, though it was recognized as a particularly difficult one. After conquering Persia, the Arab Umayyad Caliphate incorporated parts of what are now Afghanistan and Pakistan around 720. The book Chach Nama chronicles the Chacha Dynasty's period, following the demise of the Rai Dynasty and the ascent of Chach of Alor to the throne, down to the Arab conquest by Muhammad bin Qasim in the early 8th century AD, by defeating the last Hindu monarch of Sindh, Raja Dahir.
Is there an answer to this question: Who was the final Hindu monarch of Sindh?

Answer: Raja Dahir

Question: Some people consider glass to be a liquid due to its lack of a first-order phase transition where certain thermodynamic variables such as volume, entropy and enthalpy are discontinuous through the glass transition range. The glass transition may be described as analogous to a second-order phase transition where the intensive thermodynamic variables such as the thermal expansivity and heat capacity are discontinuous. Nonetheless, the equilibrium theory of phase transformations does not entirely hold for glass, and hence the glass transition cannot be classed as one of the classical equilibrium phase transformations in solids.
Is there an answer to this question: Transition in glass is comparable to what?

Answer: a second-order phase transition

Question: Glass has the ability to refract, reflect, and transmit light following geometrical optics, without scattering it. It is used in the manufacture of lenses and windows. Common glass has a refraction index around 1.5. This may be modified by adding low-density materials such as boron, which lowers the index of refraction (see crown glass), or increased (to as much as 1.8) with high-density materials such as (classically) lead oxide (see flint glass and lead glass), or in modern uses, less toxic oxides of zirconium, titanium, or barium. These high-index glasses (inaccurately known as "crystal" when used in glass vessels) cause more chromatic dispersion of light, and are prized for their diamond-like optical properties.
Is there an answer to this question: Why are high-index glasses modified?

Answer: unanswerable

Question: A fervent follower of the absolutist cause, Elio had played an important role in the repression of the supporters of the Constitution of 1812. For this, he was arrested in 1820 and executed in 1822 by garroting. Conflict between absolutists and liberals continued, and in the period of conservative rule called the Ominous Decade (18231833), which followed the Trienio Liberal, there was ruthless repression by government forces and the Catholic Inquisition. The last victim of the Inquisition was Gaieta Ripoli, a teacher accused of being a deist and a Mason who was hanged in Valencia in 1824.
Is there an answer to this question: Who helped repress the supporters of the Constitution and was later executed for it?

Answer:
Elio