Question: "How did White sell his 40000 copies of his album in 2014?" Context: "In 2014 artist Jack White sold 40,000 copies of his second solo release, Lazaretto, on vinyl. The sales of the record beat the largest sales in one week on vinyl since 1991. The sales record was previously held by Pearl Jam's, Vitalogy, which sold 34,000 copies in one week in 1994. In 2014, the sale of vinyl records was the only physical music medium with increasing sales with relation to the previous year. Sales of other mediums including individual digital tracks, digital albums and compact discs have fallen, the latter having the greatest drop-in-sales rate." Answer:
Ans: on vinyl

Question: "Which type of memory is slower to read and write to?" Context: "The CPU contains a special set of memory cells called registers that can be read and written to much more rapidly than the main memory area. There are typically between two and one hundred registers depending on the type of CPU. Registers are used for the most frequently needed data items to avoid having to access main memory every time data is needed. As data is constantly being worked on, reducing the need to access main memory (which is often slow compared to the ALU and control units) greatly increases the computer's speed." Answer:
Ans: main memory

Question: "What is the role of Compass-M1 for the Compass navigation system?" Context: "Compass-M1 is an experimental satellite launched for signal testing and validation and for the frequency filing on 14 April 2007. The role of Compass-M1 for Compass is similar to the role of the GIOVE satellites for the Galileo system. The orbit of Compass-M1 is nearly circular, has an altitude of 21,150 km and an inclination of 55.5 degrees." Answer:
Ans: signal testing and validation

Question: "What factor precipitated the lost to the Mughal Empire of an area of India?" Context: "Over the years, the Mughals began to have internal disputes which greatly distracted them at times. The Mughal Empire continued to weaken, and with the decline of the Mughal Empire in the 18th century, Rajputana came under the suzerainty of the Marathas. The Marathas, who were Hindus from the state of what is now Maharashtra, ruled Rajputana for most of the eighteenth century. The Maratha Empire, which had replaced the Mughal Empire as the overlord of the subcontinent, was finally replaced by the British Empire in 1818." Answer:
Ans: decline of the Mughal Empire