Student A:The Earth's crust is made of approximately 5 % of heavy metals by weight, with iron comprising 95 % of this quantity. Light metals (~ 20 %) and nonmetals (~ 75 %) make up the other 95 % of the crust. Despite their overall scarcity, heavy metals can become concentrated in economically extractable quantities as a result of mountain building, erosion, or other geological processes.

Which heavy metal has highest concentration in earth's crust?
Student B:OK... To answer the question, consider the following: The Earth's crust is made of approximately 5 % of heavy metals by weight, with iron comprising 95 % of this quantity.
iron.

Problem:Context: Its architecture and mosaics were patterned after nearby Byzantine churches and palaces, although its outside appearance has been significantly changed in the Ottoman period and again in the modern period, notably with the addition of the gold-plated roof, in 1959 -- 61 and again in 1993. The octagonal plan of the structure may have been influenced by the Byzantine Church of the Seat of Mary (also known as Kathisma in Greek and al-Qadismu in Arabic) built between 451 and 458 on the road between Jerusalem and Bethlehem.

Question: when was the dome of the rock painted gold?
Solution:OK... To answer this question, we should know that: Its architecture and mosaics were patterned after nearby Byzantine churches and palaces, although its outside appearance has been significantly changed in the Ottoman period and again in the modern period, notably with the addition of the gold-plated roof, in 1959 -- 61 and again in 1993.
1959 -- 61.

Student A:Nagarjuna Sagar Dam, one of the world's largest and tallest Masonry dam built across the Krishna river at Nagarjuna Sagar which is in Nalgonda District, Telangana State. Construction was between 1955 and 1967, the dam created a water reservoir with gross storage capacity of 11.472 billion cubic metres (405.1 × 10 ^ cu ft). The dam is 590 feet (180 m) tall from its deepest foundation and 0.99 miles (1.6 km) long with 26 flood gates which are 42 feet (13 m) wide and 45 feet (14 m) tall.

Answer this question based on the passage: how many gates are there in nagarjuna sagar dam?
Student B:OK... The relevant information is: The dam is 590 feet (180 m) tall from its deepest foundation and 0.99 miles (1.6 km) long with 26 flood gates which are 42 feet (13 m) wide and 45 feet (14 m) tall.
26.

Problem:The song "Live and Let Die" was previewed in the 1973 television special James Paul McCartney, which aired on 16 April in the United States and 10 May in the United Kingdom. In the segment, McCartney and Wings were shown performing the song in his studio while clips of the film were shown, before the film's US theatrical release on 27 June.

Based on this passage, when did the song live and let die come out?
Solution:OK... The relevant information to answer the above question is: The song "Live and Let Die" was previewed in the 1973 television special James Paul McCartney, which aired on 16 April in the United States and 10 May in the United Kingdom.
1973.

Student A:The appointment and confirmation of Justices to the Supreme Court of the United States involves several steps set forth by the United States Constitution, which have been further refined and developed by decades of tradition. Candidates are nominated by the President of the United States and must face a series of hearings in which both the nominee and other witnesses make statements and answer questions before the Senate Judiciary Committee, which can vote to send the nomination to the full United States Senate. Confirmation by the Senate allows the President to formally appoint the candidate to the court.

Based on this passage, who approves presidential appointments to the supreme court?
Student B:OK... The relevant information to answer the above question is: Confirmation by the Senate allows the President to formally appoint the candidate to the court.
the Senate.

Student A:The Siege of Savannah or the Second Battle of Savannah was an encounter of the American Revolutionary War (1775-1783), in 1779. The year before, the city of Savannah, Georgia, had been captured by a British expeditionary corps under Lieutenant-Colonel Archibald Campbell. The siege itself consisted of a joint Franco-American attempt to retake Savannah, from September 16 to October 18, 1779. On October 9 a major assault against the British siege works failed. During the attack, Polish nobleman Count Casimir Pułaski, leading the combined cavalry forces on the American side, was mortally wounded. With the failure of the joint attack, the siege was abandoned, and the British remained in control of Savannah until July 1782, near the end of the war.

Answer this question: when did the siege of savannah take place?
Student B:
OK... The relevant information is: The Siege of Savannah or the Second Battle of Savannah was an encounter of the American Revolutionary War (1775-1783), in 1779.
1779.