Based on the information present in the given passage, you need to write a correct answer to the given question. A correct answer is one that correctly and completely answers the question. Do not write answers that address the question partially or incorrectly. The correct answer must be contained in the given paragraph.
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Question: Paragraph- Sent 1: Water flowing over Earths surface or underground causes erosion and deposition.
Sent 2: Water flowing over a steeper slope moves faster and causes more erosion.
Sent 3: How water transports particles depends on their size.
Sent 4: When water slows down, it starts depositing sediment.
Sent 5: This process starts with the largest particles first.
Sent 6: Runoff erodes the land after a heavy rain.
Sent 7: It picks up sediment.
Sent 8: Runoff carries most of the sediment to bodies of water.
Sent 9: Mountain streams erode narrow, V-shaped valleys and waterfalls.
Sent 10: Erosion and deposition by slow-flowing rivers create broad floodplains and meanders.
Sent 11: Deposition by streams and rivers may form alluvial fans and deltas.
Sent 12: Floodwaters may deposit natural levees.
Sent 13: Erosion and deposition by groundwater can form caves and sinkholes.
Sent 14: Stalactites and stalagmites are mineral deposits.
Sent 15: They build up in caves as water continues to drip. 
Question: What body of water carries the particles?.

Answer: Rivers.


Question: Paragraph- Sent 1: The Agencies Confer When they learned a second plane had struck the World Trade Center, nearly everyone in the White House told us, they immediately knew it was not an accident.
Sent 2: The Secret Service initiated a number of security enhancements around the White House complex.
Sent 3: The officials who issued these orders did not know that there were additional hijacked aircraft, or that one such aircraft was en route to Washington.
Sent 4: These measures were precautionary steps taken because of the strikes in New York.
Sent 5: The FAA and White House Teleconferences.
Sent 6: The FAA, the White House, and the Defense Department each initiated a multiagency teleconference before 9:30.
Sent 7: Because none of these teleconferences-at least before 10:00- included the right officials from both the FAA and Defense Department, none succeeded in meaningfully coordinating the military and FAA response to the hijackings.
Sent 8: At about 9:20, security personnel at FAA headquarters set up a hijacking teleconference with several agencies, including the Defense Department.
Sent 9: The NMCC officer who participated told us that the call was monitored only periodically because the information was sporadic, it was of little value, and there were other important tasks.
Sent 10: The FAA manager of the teleconference also remembered that the military participated only briefly before the Pentagon was hit.
Sent 11: Both individuals agreed that the teleconference played no role in coordinating a response to the attacks of 9/11.
Sent 12: Acting Deputy Administrator Belger was frustrated to learn later in the morning that the military had not been on the call.
Sent 13: At the White House, the video teleconference was conducted from the Situation Room by Richard Clarke, a special assistant to the president long involved in counterterrorism.
Sent 14: Logs indicate that it began at 9:25 and included the CIA; the FBI; the departments of State, Justice, and Defense; the FAA; and the White House shelter.
Sent 15: The FAA and CIA joined at 9:40.
Sent 16: The first topic addressed in the White House video teleconference-at about 9:40-was the physical security of the President, the White House, and federal agencies.
Sent 17: Immediately thereafter it was reported that a plane had hit the Pentagon.
Sent 18: We found no evidence that video teleconference participants had any prior information that American 77 had been hijacked and was heading directly toward Washington. 
Question: When did the Secret Service initiate security enhancements around the White House?.

Answer: After the second plane hit the world trade towers.


Question: Paragraph- Sent 1: Expansion quickly peaked however, and the European powers who had carved up the New World set about testing each other in dynastic conflicts and colonial rivalry.
Sent 2: The English were the main rivals of the Dutch on the high seas, and there were several wars between the two in the 17th and 18th centuries.
Sent 3: In 1665–1667 the Dutch sailed up the River Medway and sank the British fleet moored there.
Sent 4: The 18th century saw Amsterdam grow into the foremost financial center in the world, but the seeds of decline had already been planted.
Sent 5: When the English colonies in New England rose up in revolt against the British, they found ready Ailies in the Dutch.
Sent 6: From their colonies in the Caribbean they sent caches of arms and ammunition.
Sent 7: The British were furious and went to war in 1780, destroying the Dutch navy and signaling a sudden decline in power and influence from which the Netherlands never recovered.
Sent 8: Trade suffered to such an extent that in 1791 the VOC went into liquidation.
Sent 9: In the latter part of the century there were anti-Orange demonstrations by pro-French factions in the country, and in 1795 Napoleon Bonaparte took the Netherlands in his epic march across Europe.
Sent 10: Under the yoke of another foreign power, and with trade at an all time low, the Golden Age was truly dead.
Sent 11: The Return of the House of Orange Napoleon installed his brother Louis as King of Holland and he chose to take the fine Town Hall on Dam Square as his palace — now the Koninklijk Palace.
Sent 12: But only four years later he fled the city after civil disturbances broke out when he raised taxes.
Sent 13: When Napoleon's bubble burst and French power began to wane, William of Orange emerged from exile and was proclaimed king in 1813.
Sent 14: Amsterdam had to work its way out of economic decline, but throughout the 19th century the city grew steadily.
Sent 15: Industrialization changed the city.
Sent 16: With the building of the Central Station at the end of the century, Amsterdam turned its back on its seafaring past and looked towards the mechanical age for its future.
Sent 17: The station was built over the old harbor wall and some of the oldest canals in the city center were filled in to allow better access to motorized vehicles.
Sent 18: Dam Square was landlocked for the first time in its history. 
Question: Did Amsterdam grow into the foremost financial center in the world before or after the Dutch sailed up the River Medway and sank a British fleet?.

Answer:
After.


