Question 1

Alaska’s climate has been gradually warming over the past two decades, Over the same period the spruce-bark beetle has killed unprecedented millions of acres of Alaska’s spruce trees. Clearly, this devastation is attributable to the warming trend: not only have the recent warm summers in Alaska halved the time it takes a beetle to develop from an egg. leading to a dramatic increase in the beetle’s population, but ____________. Which of the following most logically completes the argument?

Options :

A : warmer conditions have also increased the population of the spruce-bark beetle’s main predator

B : warmer conditions might also mean that trees with a more southerly range than that of spruce trees will gradually expand their range northward

C : warmer conditions have also severely stressed spruce trees, making them more vulnerable to insect attack

D : it has also been impossible to use the most effective pesticide for combating the spruce-bark beetle, because that pesticide has harmful effects on birds and mammals

E : also the spruce-bark beetle tends to attack relatively young trees rather than mature or dying trees

Answer: C

Question 2

Options :

A : The quantity in Column A is greater;

B : The quantity in Column B is greater;

C : The quantities are equal;

D : The relationship cannot be determined from the information given.

Answer: B

Question 3

Options :

A : The quantity in Column A is greater;

B : The quantity in Column B is greater;

C : The quantities are equal;

D : The relationship cannot be determined from the information given.

Answer: B

Question 4

What is 1230.932567 rounded to the nearest hundredths place?

Options :

A : 1200

B : 1230.9326

C : 1230.93

D : 1230

E : 1230.933

Answer: C

Question 5

In the xy-plane, three of the four vertices of a parallelogram are the points (6, 8), (12, 8), and (12, 4). Which of the following points could be the fourth vertex of the parallelogram? Indicate all such points.

Options :

A : (6, 4)

B : (6, 12)

C : (12, 12)

D :

(18, 8)

Answer: A,B

Confidently Practice Online with Free GRE Exam Cram

Buying Options: