PUREWATER IS OFTEN A FAIRY RARE COMMODITY THAT REQUIRE SIGNIFICANT...

22.

Pure

water is often a fairy rare commodity that require significant energy to produce.

A. clean

B. contaminated

C. fresh

D. flawless

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

indicate the correct word or phrase that best fits each of the numbered blanks

Most birds build nests in which they lay their eggs, but the emperor penguin has no need

of them. This bird lives in Antarctica and must endure (23)... weather than anywhere

else in the world. In order to (24).... that its eggs are not harmed and that its chicks may

hatch from them, the emperor penguin takes care of its eggs in a unique manner. An

emperor penguin female lays a single egg. Once she lays the egg, the male penguin takes

it and puts it (25).... There, the egg (26) …..by a layer of stomach fat that the penguin

rests above the egg. Since emperor penguins lay their eggs right as winter begins in

Antarctica, it is vital that the eggs remain protected from the elements. Therefore, for the

next two months, the males incubate the eggs until the chicks finally hatch. During this

entire (27)... the males look after the eggs while hardly even moving.