Doctors say obesity,also known as severe overweight,is a complex condition.A doctor may advise medical interventions in addition to changes in behavior.But experts say the more successful weightloss plans include a wellbalanced diet and exercise. 

People who want to avoid weight gain have to balance the number of calories they eat with the number of calories they use.To lose weight,you can reduce the number of calories you take in,or increase the number you use,or both.Experts at the National Institutes of Health say to lose weight,a person should do some moderate or intensive physical exercise most days of the week.This could include fast walking,sports or strength training. 

A recent study looked at four of the most popular dieting plans in the United States.Researchers at Stanford University studied more than three hundred overweight women,mostly in their thirties or forties.Each woman went on one of the four plans:Atkins,The Zone,Ornish or LEARN.The women attended diet classes and received written information about the food plans.At the end of a year,the women on the Atkins diet had lost the most,more than four and a half kilograms on average. 

Christopher Gardner led the study,reported in the Journal of the American Medical Association. He said the Atkins diet may be more successful because of its simple message to lower the intake of sugar.Also,he said the advice to increase protein in the diet leads to more satisfying meals. 

But last week,another report suggested that only a small minority of people have longterm success in dieting.Researchers at the University of California found that most dieters regained their lost weight within five years.And often they gained back even more.But those who kept the weight off generally were the ones who exercised. What are the answers to this following set of questions: 1. how many people were in the study?
2. were they both male and female?
3. what gender were they?
4. what was it about?
5. less than 10 of them?
6. exactly how many?
7. were they named?
8. what was one?
9. another?
10. where was it conducted?
11. by who?
12. from where?
13. who was the leader?
14. were the results published?
15. where?
16. was one plan more successful?
17. which one?
18. why?
19. which is?
20. any other reason?
21. what?
Answer: 1. more than three hundred
2. No
3. female
4. dieting plans
5. Yes
6. four
7. Yes
8. Atkins
9. The Zone
10. the United States
11. Researchers
12. Stanford University
13. Christopher Gardner
14. Yes
15. the Journal of the American Medical Association.
16. Yes
17. the Atkins diet
18. because of its simple message
19. to lower the intake of sugar.
20. Yes
21. to increase protein in the diet leads to more satisfying meals.

Problem: Chapter IX 

Man and Man 

Tarzan of the Apes lived on in his wild, jungle existence with little change for several years, only that he grew stronger and wiser, and learned from his books more and more of the strange worlds which lay somewhere outside his primeval forest. 

To him life was never monotonous or stale. There was always Pisah, the fish, to be caught in the many streams and the little lakes, and Sabor, with her ferocious cousins to keep one ever on the alert and give zest to every instant that one spent upon the ground. 

Often they hunted him, and more often he hunted them, but though they never quite reached him with those cruel, sharp claws of theirs, yet there were times when one could scarce have passed a thick leaf between their talons and his smooth hide. 

Quick was Sabor, the lioness, and quick were Numa and Sheeta, but Tarzan of the Apes was lightning. 

With Tantor, the elephant, he made friends. How? Ask not. But this is known to the denizens of the jungle, that on many moonlight nights Tarzan of the Apes and Tantor, the elephant, walked together, and where the way was clear Tarzan rode, perched high upon Tantor's mighty back. 

Many days during these years he spent in the cabin of his father, where still lay, untouched, the bones of his parents and the skeleton of Kala's baby. At eighteen he read fluently and understood nearly all he read in the many and varied volumes on the shelves. 
1. who lived in the jungle?
2. did he have a friend?
3. what was their name?
4. was it an animal?
5. did he ride it?
6. what kind of animal  was it?
7. does tarzan have a longer name?
8. what is it?
9. what kind of dwelling did he live in?
10. who did it belong to?
11. is he still alive?
12. does tarzan like to read?
13. by what age could he read very well?
14. what kind of  worlds did he read about?
15. was he bored?
16. what did he catch in the lakes?
17. what are they called?
18. what is the name of the lioness?
19. was she fast?
20. who was faster?
Answer: 1. Tarzan
2. yes
3. Tantor
4. yes
5. yes
6. an elephant
7. yes
8. Tarzan of the Apes
9. cabin
10. his father
11. no
12. yes
13. eighteen
14. strange
15. no
16. fish
17. Pisah
18. Sabor
19. yes
20. Tarzan himself

question: Cuba (), officially the Republic of Cuba (), is a country comprising the island of Cuba as well as Isla de la Juventud and several minor archipelagos. Cuba is located in the northern Caribbean where the Caribbean Sea, the Gulf of Mexico, and the Atlantic Ocean meet. It is south of both the U.S. state of Florida and the Bahamas, west of Haiti, and north of Jamaica. Havana is the largest city and capital; other major cities include Santiago de Cuba and Camagüey. Cuba is the largest island in the Caribbean, with an area of , and the second-most populous after Hispaniola, with over 11 million inhabitants. 

Prior to Spanish colonization in the late 15th century, Cuba was inhabited by Amerindian tribes. It remained a colony of Spain until the Spanish–American War of 1898, which led to nominal independence as a "de facto" United States protectorate in 1902. As a fragile republic, Cuba attempted to strengthen its democratic system, but mounting political radicalization and social strife culminated in the dictatorship of Fulgencio Batista in 1952. Further unrest and instability led to Batista's ousting in January 1959 by the July 26 Movement, which afterwards established a dictatorship under the leadership of Fidel Castro. Since 1965, the state has been governed by the Communist Party of Cuba. A point of contention during the Cold War between the Soviet Union and the United States, a nuclear war nearly broke out during the Cuban Missile Crisis of 1962. Cuba is one of the few remaining Marxist–Leninist socialist states, where the role of the vanguard Communist Party is enshrined in the Constitution. Independent observers have accused the Cuban government of numerous human rights abuses, including arbitrary imprisonment.
1. What's the main topic?
****
answer:
1. Cuba