Problem: Given the question: The answer to the question: What has advantages over land-based mining? is inside the article: The seabed contains enormous reserves of minerals which can be exploited by dredging. This has advantages over land-based mining in that equipment can be built at specialised shipyards and infrastructure costs are lower. Disadvantages include problems caused by waves and tides, the tendency for excavations to silt up and the washing away of spoil heaps. There is a risk of coastal erosion and environmental damage. Seafloor massive sulphide deposits are potential sources of silver, gold, copper, lead and zinc and trace metals since their discovery in the 1960s. They form when geothermally heated water is emitted from deep sea hydrothermal vents known as "black smokers". The ores are of high quality but prohibitively costly to extract. Small scale mining of the deep sea floor is being developed off the coast of Papua New Guinea using robotic techniques, but the obstacles are formidable.There are large deposits of petroleum, as oil and natural gas, in rocks beneath the seabed. Offshore platforms and drilling rigs extract the oil or gas and store it for transport to land. Offshore oil and gas production can be difficult due to the remote, harsh environment. Drilling for oil in the sea has environmental impacts. Animals may be disorientated by seismic waves used to locate deposits, probably causing the beaching of whales. Toxic substances such as mercury, lead and arsenic may be released. The infrastructure may cause damage, and oil may be spilt.Large quantities of methane clathrate exist on the seabed and in ocean sediment at a temperature of around 2 C (36 F) and these are of interest as a potential energy source. Some estimates put the amount available at between one and 5 million cubic kilometres (0.24 to 1.2 million cubic miles). Also on the seabed are manganese nodules formed of layers of iron, manganese and other hydroxides around a core. In the Pacific these may cover up to 30 percent of the deep ocean floor. The minerals precipitate from seawater and grow very slowly. Their commercial extraction for..., can you guess it ?
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The answer is:
dredging

Problem: Given the question: The answer to the question: What is the last name of the general who led the troops that brought two 12 pounder artillery pieces? is inside the article: Between 9:00 pm and 10:00 pm the guards enacted a strategy whereby the police officers, backed by the bayonets of the soldiers, advanced to the crowd and arrested each a man, who was then taken into the station, disarmed, and held there. The strategy was largely successful, and by 11:00 pm the area around the station was mostly cleared, though sporadic gunfire could be heard throughout the night. Between 165 and 200 were detained in total, and the most violent of the captives were removed and taken to the police station. The news reported that four, including one police officer, were injured in the exchange, and several who resisted arrest were beaten severely.At the foundry near the Carey Street Bridge, a crowd of more than 100 gathered and threatened to set fire to the area. A contingent of the 5th under Captain Lipscomb arrived, and a volley fired over the heads of the crowd was sufficient to dissuade the crowd. An unsuccessful attempt was also made to burn a B&O transportation barge at Fell's Point. The news reported that 16 were arrested in a confrontation between citizens and the police at Lee and Eutaw, and that during the night, three separate attempts were made to set fire the 6th Regiment armory, but all were frustrated by the remaining garrison there.Just before midnight, 120135 marines arrived at the station and reported to the governor, who ordered them to set about capturing the leaders of the mob. Governor Carroll telegraphed and advised President Hayes that order had been restored in the city. Between 2:00 am and 3:00 am on Sunday morning, July 22, the peace was again broken and fire alarms began to ring throughout the city. To the west, at the Mount Clare Shops of the B&O, a 37-car train of coal and oil had been set on fire. Police, firefighters, and thousands of citizens flocked to the scene. A contingent of 50 marines was dispatched to the area to provide assistance. The cars which had not yet caught fire were detached from those burning, and by the time the flames were extinguished..., can you guess it ?
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The answer is:
Hancock

Problem: Given the question: The answer to the question: What is the first name of the person that says that the Japanese have a 'swell chance' of catching Superman? is inside the article: While Clark Kent and Lois Lane are kept under house arrest as prisoners of war in Japan, Superman becomes a saboteur. In the Japanese City of Yokohama the Eleventh Hour strikes and a ship is turned over. Superman escapes searchlights while sirens go off and goes through a window, putting a barred grille back in place. Lois asks if Clark is awake, to which he asks who could sleep through a racket like this. Lois says the racket has been happening every night since they have been interned. Clark says it may be sabotage, which Lois also hopes. She wonders if Superman is responsible. A guard tells them to stop talking. A Japanese Official says the sabotage must stop at once. As the Eleventh Hour strikes, Clark looks at his watch and leaves the window, returning as Superman. He leaves the room by removing the grille and drags a ship over into the sea. Sabotage happens every night at the Eleventh Hour, and the Official again says the sabotage still must be stopped. Lois sees Superman as he leaps between buildings. She says outside Clark's room that it is Superman, she just saw him, and the Japanese have a 'swell chance' of catching him. However a guard covers her mouth from behind and drags her out. Notices are put up saying 'Warning! Superman One more act of Sabotage and the American Girl Reporter will be executed at once'. Superman sends another ship into the sea, but is buried under steel girders. Lois is taken out for execution with her hands tied. As Superman digs himself out she walks against the wall and is blindfolded. Superman sees the notice and is fired on, but leaps away. He shields Lois just as the bullets are fired, and leaps away with her. On a ship landing in America Lois is interviewed. She is asked by a reporter if Clark got away, but says he is still over there but Superman promised to look after him. As the Eleventh Hour strikes in Japan there is another explosion., can you guess it ?
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The answer is:
Lois