(CNN) -- An 11-mile stretch of the Mississippi River near Greenville, Mississippi, was closed Monday to most vessel traffic because of low water levels, idling nearly a hundred boats and barges in the stream, according to the U.S. Coast Guard.

"We are allowing a limited number of vessels based on size" to attempt to pass, said New Orleans-based Coast Guard spokesman Ryan Tippets, adding that the closure was affecting 97 vessels Monday afternoon and was halting both northbound and southbound traffic.

Salt creeping up the Mississippi River

This same area near Greenville, which sees about 50 vessels pass on an average day, has been closed "intermittently" since August 12, when a vessel ran aground, said Tippets.

The Coast Guard and the Army Corps of Engineers have continued surveying the area and deemed it "dangerous for vessels to travel through," he said. The Army Corps of Engineers also has being dredging in the area to deepen the channel and help navigation.

Complete coverage of the drought

A historic drought and excessive heat have reduced water levels and scorched wide sections of the U.S. Midwest. Flooding last year may have worsened the situation on the Mississippi by leaving deposits of silt and debris in areas that would normally be clear.

Tippiets said he was unsure when the river would reopen or, once that happens, how long it would take to undo the gridlock.

Interactive map: Watch drought overtake U.S.

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What are the answers to this following set of questions: 1. What is going on near Greenville, Mississippi?
2. What are the consequences of the drought?
3. Where?
4. What body of water?
5. Who is responsible for closing the area?
6. What are they doing about it?
7. How many vessels are affected?
8. Who is Ryan Tippets?
9. What did he say?
10. Did a drought happen last year?
11. How did floods contribute to the problem?
Answer: 1. A historic drought
2. vessel traffic is closte to hundred boats and barges
3. near Greenville, Mississippi
4. the Mississippi River
5. The Coast Guard and the Army Corps of Engineers
6. allowing a limited number of vessels based on size" to attempt to pass and dredging in the area to deepen the channel
7. hundreds it depends on the time and day
8. A New Orleans-based Coast Guard spokesman
9. he was unsure when the river would reopen or, once that happens, how long it would take to undo the gridlock.
10. yes
11. leaving deposits of silt and debris in areas that would normally be clear.

Problem: Have you ever heard of Back-to-Front Day? It is a festival in Britain. On that day, the adults have to go to school. And the children? They are the policemen and firemen; they sit in the offices and call New York and Paris; they are doctors and nurses. "Stand in the corner, Mr. Bass!" said Mary. Mary was six and had a class of twenty-three men and fifteen women. They were making too much noise. John was a policeman. Though his uniform was too big, he walked down the street with pride. "Hm, why are you not at school?" "Oh, I ... I have something important to do," said the man. "Fiddlesticks !" said John angrily. He took out his notebook. "Name?" he asked. "Mr. Green." John wrote it down and blew his whistle and a police car appeared. "I have a _ here," said John. "Drive him to school!" At the hospital a small doctor climbed on one chair in order to examine Mrs. Brown's throat, and Nurse Jenny took Granny Lisa's temperature. The best part of Back-to-Front Day is in the evening. The children put the adults to bed, very early. They tell them a story, too -- after the adults wash their faces and brush their teeth. How interesting Back-to-Front Day is!
1. Why was John's uniform too big?
2. What is Back to Front Day?
3. What do grownups do?
4. And the kids?
5. What was John
6. How did he feel about that?
7. Why was he mad at Mr. Green?
8. What was his excuse?
9. What did John do with him?
10. How did he summon the police car?
11. How old was Mary?
12. What was her job?
13. Who did she punish?
14. How?
15. What had he done?
16. How big was her class?
17. Who was a nurse?
18. What did she do?
19. What did the kids do early that evening?
20. What did the adults do before bed?
Answer: 1. unknown
2. a festival
3. They go to school
4. They are the policemen and firemen
5. a policeman.
6. Proud
7. Because he wasn't at school.
8. I have something important to do
9. Had him driven to the school
10. blew his whistle
11. six
12. She is a teacher
13. Mr. Bass
14. She made him stand in the corner
15. Made too much noise
16. 38 adults
17. Jenny
18. took Granny Lisa's temperature.
19. put the adults to bed, very early.
20. wash their faces and brush their teeth

question: Madrid is the capital of Spain and the largest municipality in both the Community of Madrid and Spain as a whole. The city has almost 3.166million inhabitants with a metropolitan area population of approximately 6.5 million. It is the third-largest city in the European Union (EU) after London and Berlin, and its metropolitan area is the third-largest in the EU after those of London and Paris. The municipality itself covers an area of .

Madrid lies on the River Manzanares in the centre of both the country and the Community of Madrid (which comprises the city of Madrid, its conurbation and extended suburbs and villages); this community is bordered by the autonomous communities of Castile and Leon and Castile-La Mancha. As the capital city of Spain, seat of government, and residence of the Spanish monarch, Madrid is also the political, economic and cultural centre of the country. The current mayor is Manuela Carmena from Ahora Madrid.

The Madrid urban agglomeration has the third-largest GDP in the European Union and its influences in politics, education, entertainment, environment, media, fashion, science, culture, and the arts all contribute to its status as one of the world's major global cities. Madrid is home to two world-famous football clubs, Real Madrid and Atletico de Madrid. Due to its economic output, high standard of living, and market size, Madrid is considered the major financial centre of Southern Europe and the Iberian Peninsula; it hosts the head offices of the vast majority of major Spanish companies, such as Telefonica, IAG or Repsol. Madrid is the 17th most liveable city in the world according to Monocle magazine, in its 2014 index.
1. What famous athletic clubs is Madrid home to?
2. What river is it on?
3. What country is it the capital of?
4. How many people are in its metropolitan area?
5. And in the city?
6. What other two cities are larger than it in the European Union?
7. What is it considered the major financial center of?
8. What is one major Spanish company in the city?
9. Who named it the 17th most liveable city?
10. In what year?
11. Whose the mayor now?
12. Where's he from?
13. What does the municipality cover?
14. What borders the Community of Madrid?
15. Does the Spanish monarch live in Madrid?
16. What does it have the third largest of in the European Union?
17. What position does its GDP have in the European Union?
18. Can you name a couple things that Madrid influences?
19. What do they contribute to?
****
answer:
1. Real Madrid and Atletico de Madrid
2. the River Manzanares
3. Spain
4. 6.5 million
5. 3.166million
6. London and Berlin
7. Southern Europe and the Iberian Peninsula
8. Telefonica
9. Monocle magazine
10. 2014
11. Manuela Carmena
12. Ahora Madrid.
13. unknown
14. the autonomous communities of Castile and Leon and Castile-La Manch
15. yes
16. It is the third-largest city
17. third
18. politics, education, entertainment
19. the world