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Difficulty:
65%
(hard)
Question Stats:
58% (01:53) correct
42%
(02:03)
wrong
based on 7026
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New hardy varieties of rice show promise of producing high yields without the costly requirements of irrigation and application of commercial fertilizer by earlier high yielding varieties.
(A) requirements of irrigation and application of commercial fertilizer by earlier high yielding varieties
(B) requirements by earlier high yielding varieties of application of commercial fertilizer and irrigation
(C) requirements for application of commercial fertilizer and irrigation of earlier high yielding varieties
(D) application of commercial fertilizer and irrigation that was required by earlier high yielding varieties
(E) irrigation and application of commercial fertilizer that were required by earlier high yielding varieties
(A) requirements of irrigation and application of commercial fertilizer by earlier high yielding varieties
(B) requirements by earlier high yielding varieties of application of commercial fertilizer and irrigation
(C) requirements for application of commercial fertilizer and irrigation of earlier high yielding varieties
(D) application of commercial fertilizer and irrigation that was required by earlier high yielding varieties
(E) irrigation and application of commercial fertilizer that were required by earlier high yielding varieties
https://www.nytimes.com/1984/08/14/science/new-varieties-of-hardy-rice-hold-promise.html
The new varieties promise to give high yields without the costly irrigation required by the earlier ''miracle'' rice strains developed at the International Rice Research Institute here. The new strains have not yet been tested in farmers' fields, but one particularly promising variety has produced test yields more than twice as large as those from traditional varieties.
So in the 1970's the mission of rice scientists became to develop high-yielding strains that were also resistant to disease and insect pests. That second frontier, too, was crossed, and once again the institute led the way. A strain called IR-36, the progeny of 13 different varieties from six countries, is the best example of that effort. First planted by farmers in the Philippines in 1976, IR-36 is now grown on more than 24.7 million acres of rice lands throughout the world.
Progress is likely to proceed gradually for two main reasons. First, breakthroughs inevitably become harder to come by as the work advances. Second, while the irrigated environments for earlier high-yielding varieties tend to be uniform, the adverse conditions of rain-fed areas vary tremendously. Some areas are drought-prone, but others are frequently flooded.
The new varieties promise to give high yields without the costly irrigation required by the earlier ''miracle'' rice strains developed at the International Rice Research Institute here. The new strains have not yet been tested in farmers' fields, but one particularly promising variety has produced test yields more than twice as large as those from traditional varieties.
So in the 1970's the mission of rice scientists became to develop high-yielding strains that were also resistant to disease and insect pests. That second frontier, too, was crossed, and once again the institute led the way. A strain called IR-36, the progeny of 13 different varieties from six countries, is the best example of that effort. First planted by farmers in the Philippines in 1976, IR-36 is now grown on more than 24.7 million acres of rice lands throughout the world.
Progress is likely to proceed gradually for two main reasons. First, breakthroughs inevitably become harder to come by as the work advances. Second, while the irrigated environments for earlier high-yielding varieties tend to be uniform, the adverse conditions of rain-fed areas vary tremendously. Some areas are drought-prone, but others are frequently flooded.
12 Jun 2017, 10:18
Kudos
Bookmarks
This topic is deep. The first point is to note is that the requirements are not themselves costly but the factors that are required such as the application of fertilizers and irrigation are costly. That is the reason we can dispense with choice A, B, and C instantly
In D, a couple of factors are denoted by a singular verb 'was'.
Only E remains.
In D, a couple of factors are denoted by a singular verb 'was'.
Only E remains.
31 Jan 2008, 21:03
Kudos
Bookmarks
Well the sentence is trying to say, the new variety of rice shows promise of producing high yields without X and Y when compared to old variety of rice, which required both X and Y.
If we break
X - requirements of irrigation
Y - application of commercial fertilizer
New hardy varieties of rice show promise of producing high yields without the costly requirements of irrigation and application of commercial fertilizer by earlier high-yielding varieties.
(A) requirements of irrigation and application of commercial fertilizer by earlier high-yielding varieties
without X and Y by earlier high-yielding varieties - ambiguous comparison .
(B) requirements by earlier high-yielding varieties of application of commercial fertilizer and irrigation
without X by....and Y -don't need to say further
(C) requirements for application of commercial fertilizer and irrigation of earlier high-yielding varieties
ugly -here we have split X itself.
(D) application of commercial fertilizer and irrigation that was required by earlier high-yielding varieties
without Y and X that was....Was is a problem here. We are talking about additive phrase , need plural were.
(E) irrigation and application of commercial fertilizer that were required by earlier high-yielding varieties
without X and Y that were required by earlier....clean comparison..agreement on pronoun
If we break
X - requirements of irrigation
Y - application of commercial fertilizer
New hardy varieties of rice show promise of producing high yields without the costly requirements of irrigation and application of commercial fertilizer by earlier high-yielding varieties.
(A) requirements of irrigation and application of commercial fertilizer by earlier high-yielding varieties
without X and Y by earlier high-yielding varieties - ambiguous comparison .
(B) requirements by earlier high-yielding varieties of application of commercial fertilizer and irrigation
without X by....and Y -don't need to say further
(C) requirements for application of commercial fertilizer and irrigation of earlier high-yielding varieties
ugly -here we have split X itself.
(D) application of commercial fertilizer and irrigation that was required by earlier high-yielding varieties
without Y and X that was....Was is a problem here. We are talking about additive phrase , need plural were.
(E) irrigation and application of commercial fertilizer that were required by earlier high-yielding varieties
without X and Y that were required by earlier....clean comparison..agreement on pronoun
