tesoke
Junior Member
- Joined
- Apr 7, 2015
- Member Type
- Student or Learner
- Native Language
- Persian
- Home Country
- Iran
- Current Location
- Iran
Hi, I have a problem with the book's answer for the following question from the reading. Please help. Thanks.
Reading:
The hypothesis of an expanding Earth has never attracted notable support, and
if it were not for the historical example of continental drift, such indifference might be
a legitimate response to an apparently improbable concept. It should be
remembered, however, that drift too was once regarded as illusory, but the idea was
kept alive until evidence from physicists compelled geologists to reinterpret their
data.
Of course, it would be as dangerous to overreact to history by concluding that
the majority must now be wrong about expansion as it would be to reenact the
response that greeted the suggestion that the continents had drifted. The cases are
not precisely analogous. There were serious problems with the pre-drift world view
that a drift theory could help to resolve, whereas Earth expansion appears to offer no
comparable advantages. If, however, physicists could show that the Earth‟s
gravitational force has decreased with time, expansion would have to be
reconsidered and accommodated.
27) It can be deduced from the passage that the gravitational force at a point on the Earth‟s surface is
(A) representative of the geologic age of the Earth
(B) analogous to the movement of land masses
(C) similar to optical phenomena such as mirages
(D) proportional to the size of the Earth
(E) dependent on the speed of the Earth‟s rotation
Answer:
I opted B but book opted D. I think my answer is correct. What do you think?
Reading:
The hypothesis of an expanding Earth has never attracted notable support, and
if it were not for the historical example of continental drift, such indifference might be
a legitimate response to an apparently improbable concept. It should be
remembered, however, that drift too was once regarded as illusory, but the idea was
kept alive until evidence from physicists compelled geologists to reinterpret their
data.
Of course, it would be as dangerous to overreact to history by concluding that
the majority must now be wrong about expansion as it would be to reenact the
response that greeted the suggestion that the continents had drifted. The cases are
not precisely analogous. There were serious problems with the pre-drift world view
that a drift theory could help to resolve, whereas Earth expansion appears to offer no
comparable advantages. If, however, physicists could show that the Earth‟s
gravitational force has decreased with time, expansion would have to be
reconsidered and accommodated.
27) It can be deduced from the passage that the gravitational force at a point on the Earth‟s surface is
(A) representative of the geologic age of the Earth
(B) analogous to the movement of land masses
(C) similar to optical phenomena such as mirages
(D) proportional to the size of the Earth
(E) dependent on the speed of the Earth‟s rotation
Answer:
I opted B but book opted D. I think my answer is correct. What do you think?
