1 the best recruiting agents

It is clear from the passage that aquaculture

1. 
   is most suitable for culturing pearls
   
2. 
   is not a newly-found application
   
3. 
   has been invented only recently
   
4. 
   is currently being practised in very few regions
   
5. 
   is most advanced in Japan
   

2. 
   The author of the passage introduces aquaculture as
   

1. 
   being five times more productive than agriculture in a given area
   
2. 
   being limited to running fresh water
   
3. 
   a complex method not suitable to be practised everywhere
   
4. 
   a method that will, in time, eliminate agriculture
   
5. 
   an alternative to meet the food supply needs of the world's population
   

3. 
   From the details given in the passage, it is clear that polyculture
   

1. 
   requires the use of a lot of labour
   
2. 
   excludes the processing of seaweed in Iceland
   
3. 
   allows the production of several crops in the same area vertically
   
4. 
   is not possible in aquaculture
   
5. 
   has not yet been tested anywhere in the world
   

200 MAGNIFICENT MALLS
According to the Guinness Book of World Records, the West Edmonton Mall, Canada, which encloses 5.2 million square feet on a 46-hectare site, is by far the largest in the world. The Mall of America, which opened in the early 1990s, the largest such center in the United States, is twice the size of its predecessor, the Del Amo Fashion Center in Torrance, California. Designed as a regional entertainment center, this mall, which is designed around a theme park, Knott's Berry Camp Snoopy, is still a million square feet smaller than the West Edmonton Mall. The West Edmonton Mall has more than 800 stores, including 11 department stores, and more than 100 restaurants and snack bars. Its other attractions include an 18-hole miniature golf course; an indoor water park with beaches and a wave-making machine for surfing; a dolphin water show; one of the world's longest water slides; submarines for underwater rides; a regulation-sized hockey rink; a nightclub area fashioned after Bourbon Street in New Orleans; cinemas; Canada Fantasyland, an amusement park with nearly 50 rides; a zoo; art exhibits; and a 360-room hotel.

1.