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c) no other animals can reach its speed.
d). has a speed reaching more than 70 miles per hour.
23. The cheetah is face to face with extinction because ............. .
a) of its speed
b) they are experiencing a sudden decline
in number
c) of reproductive problems
d) of lack of genetic differentiation and agricultural growth.
24. Reproductive problems show ..............
a) that cheetahs don't have a variation in their genetic structure.
b) that the amount of infant mortality is excessive.
c) cheetah is threatened by extinction.
d) loss of their natural habitat leads them to extinction.
It isn't known when and where it all began, but throughout the ages and in the
most diverse of
all societies, precious stones have held an almost mystical power and significance. They shone
round the necks and embellished the fingers of the ancient Egyptians; they gleamed from the
turbans of great Mogul emperors and they were centrally the myth of the Holy Grail. From the
earliest times than, precious stones have gained a value far beyond and rational assessment of
their worth. Some of the best-known gems were deemed so valuable
that they financed large
armies; others led men to torture and murder, or literally changed the destinies of whole
countries.
1. Precious stones are of much value for man as............. .
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