DISEASE, POLLUTE, AND LIMITED DISTRIBUTION ARE FACTORS THAT THREA...

24.

Disease, pollute, and limited distribution are factors that threaten various plant and animal species.

A.

threaten

^B.

pollute

^C.

factors

^D.

are

IV.

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the

correct word for each of the blanks from 25 to 29

Wild animals play an important part in the (25)_______ nature and supply us with many important

products. Birds and other small animals help (26)_______ insects. Wild animals provide food and hobby

too. Furthermore, they (27)_______ our surroundings more interesting. Uncontrolled hunting has

destroyed a lot of wildlife and people have also harmed animals such as the passenger pigeon which

disappeared completely.

Others including the whooping cranes, the blue whale and the American alligator are in danger of

dying out. Sometimes it is necessary to keep animals from (28)_______ too plentiful. For example,

rabbits and such rodents as ground squirrels and mice may cause (29)_______ damage to crops if they

are too abundant predators help hold down the population of their prey.