Reading passages

20. 
It is understood from the passage that the science of botany , 
A) is less specialized than that of zoology 
B) deals with a limited number of plants 
C) is concerned with the plant world 
D) is a subsection of zoology 
E) is not so well-known a zoology 
21. 
The author points out that the study of living things, although 
carried out under various specialized headings, _____ __. 
A) emphasizes the importance of genes and species 
B) depends upon extensive field research 
C) is mainly related to zoology 
D) actually involves two basic fields of science 
E) may not be appreciated whatsoever 
The exact number of people who died in the cyclone that struck Bagladesh last year will probably 
never be known. Winds reaching 145 miles per hour hammered the country's low-lying southeastern 
coast for nine hours, at one point driving a wall- of water roughly 20 feet high across the area- one of 
the most densely populated places in the world. It was the strongest storm ever recorded in the 
region. The official news agency reported that 125.000 victims had been confirmed dead, but it was 
believed that the toll was actually much higher. 
22. 
One can infer from the passage that one reason why so many lives 
were lost in the cyclone was because 
. 
A) most of the population had no decent housing 
B) the BagJadesh government had failed to foresee such a disaster 
C) the country had still not recovered from the previous similar eye J one 

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D) the area struck was one of the most 
overcrowded in the world 
E) the people were not prepared 
23. 
We can understand from the'passage that the official figures given 
regarding the death toll 
. 
A) didn't reflect the actual extent of the tragedy 
B) overestimated the number of victims 
C) were much higher than the authorities expected 
D) included only those drowned 
E) were the same as they were thought to be