It is clear from the passage that aquaculture is most suitable for culturing pearls
is not a newly-found application
has been invented only recently
is currently being practised in very few regions
is most advanced in Japan
The author of the passage introduces aquaculture as being five times more productive than agriculture in a given area
being limited to running fresh water
a complex method not suitable to be practised everywhere
a method that will, in time, eliminate agriculture
an alternative to meet the food supply needs of the world's population
From the details given in the passage, it is clear that polyculture requires the use of a lot of labour
excludes the processing of seaweed in Iceland
allows the production of several crops in the same area vertically
is not possible in aquaculture
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.
