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Can't we say, the temperature could be, might be, would be, or is likely to be or even will likely be?
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The average global temperature is forecast to be 0.5 degrees Celsius higher in 50 years because this year's mean temperature is the same amount higher than that of 50 years ago.


A. The average global temperature is forecast to be 0.5 degrees Celsius higher in 50 years because this year's mean temperature is the same amount higher than that of-- Okay

B. The average global temperature is forecast to rise 0.5 degrees Celsius higher in 50 years over this year because this year's mean temperature is the same amount higher than it was-- rise higher is a classic redundancy.

C. Forecasts are for the average global temperature to be 0.5 degrees Celsius higher in 50 years than today's because today's mean temperature is the same amount higher than it was--- weird choice, which says we are comparing one day's mean temperature with a 50- year average.

D. It has been forecast that the average global temperature will be 0.5 degrees Celsius higher in 50 years because this year's mean temperature is the same amount higher than what it was-- Estimations and forecasts are matters of judgments and approximations. Categorical statements such as 'will be' are illogical.

E. It is forecast that the average global temperature will rise 0.5 degrees Celsius higher in 50 years than this year's because this year's mean temperature is the same amount higher than it was--- rise higher is redundant

daagh thanks a lot for enriching me with your explanation of D.Will tke care in future.

i have one query :

in option A)
The average global temperature is forecast to be 0.5 degrees Celsius higher in 50 years because this year's mean temperature is the same amount higher than that of 50 years ago.
is not that ambiguous here?
that refers to mean temperature, right?
cannot it refer to amount?

D. It has been forecast that the average global temperature will be 0.5 degrees Celsius higher in 50 years because this year's mean temperature is the same amount higher than what it was
here
what it was
here it is singular so can't refer to amount as the amount is plural

Also temperatures are countable so isnot use of amount wrong?
please clarify
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Vanam

Point 1.

I feel ambiguity is not such a critical point in the given case. As such if you see, whether 'that' refers to mean temperature or simply the amount or even the same amount, it doesn't interfere with the meaning. So, there is no need to muse much about that. But, here 'the mean temperature' is the subject and 'the same amount' is the object. The first eligibility rests with the subject, failing which, perhaps we may consider the object.

Point 2.

Please change your idea that amount is plural. Look at this---

The amount of pension that a retired college teacher or scientist gets these days is phenomenal, running into lakhs of rupees per month.
The amount, in this case, is singular. Isn't it? The plural for 'amount' is 'amounts'.
I don't see the word temperatures in D. It is simply temperature. But even temperature when it refers to quantum is singular. For example, we generally say 'he had high temperature yesterday'.
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Bunuel
The average global temperature is forecast to be 0.5 degrees Celsius higher in 50 years because this year's mean temperature is the same amount higher than that of 50 years ago.


A. The average global temperature is forecast to be 0.5 degrees Celsius higher in 50 years because this year's mean temperature is the same amount higher than that of

B. The average global temperature is forecast to rise 0.5 degrees Celsius higher in 50 years over this year because this year's mean temperature is the same amount higher than it was

C. Forecasts are for the average global temperature to be 0.5 degrees Celsius higher in 50 years than today's because today's mean temperature is the same amount higher than it was

D. It has been forecast that the average global temperature will be 0.5 degrees Celsius higher in 50 years because this year's mean temperature is the same amount higher than what it was

E. It is forecast that the average global temperature will rise 0.5 degrees Celsius higher in 50 years than this year's because this year's mean temperature is the same amount higher than it was

Official Explanation



Creating a filter: the prompt is quite a mouthful. Where are the commas? We might suspect that there is a comma-related defect, but glancing over the answer choices, we can notice that there are no commas. Sentence Correction questions rarely involve comma defects, with the exception of comma splices, although commas are important to identify modifiers and otherwise parse sentences. We can move on and look for objective defects.

Finding objective defects: we have a defect in (B); the pronoun "it" means the sentence discusses what "this year's mean temperature" was "50 years ago," which makes no sense and is contrary to the intended meaning. Choice (C) has the same problem. They all do! Except (A). A question that otherwise might have been quite confusing ended up crumbling under one error.

The correct answer is (A).
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Vanam

Point 1.

I feel ambiguity is not such a critical point in the given case. As such if you see, whether 'that' refers to mean temperature or simply the amount or even the same amount, it doesn't interfere with the meaning. So, there is no need to muse much about that. But, here 'the mean temperature' is the subject and 'the same amount' is the object. The first eligibility rests with the subject, failing which, perhaps we may consider the object.

Point 2.

Please change your idea that amount is plural. Look at this---

The amount of pension that a retired teacher or scientist gets these days is phenomenal, running into laths of rupees per month.
The amount, in this case, is singular. Isn't it? The plural for 'amount' is 'amounts'.
I don't see the word temperatures in D. It is simply temperature. But even temperature when it refers to quantum is singular. For example, we generally say 'he had high temperature yesterday'.
thanks a lot :)
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The average global temperature is forecast to be 0.5 degrees Celsius higher in 50 years because this year's mean temperature is the same amount higher than that of 50 years ago.


A. The average global temperature is forecast to be 0.5 degrees Celsius higher in 50 years because this year's mean temperature is the same amount higher than that of

B. The average global temperature is forecast to rise 0.5 degrees Celsius higher in 50 years over this year because this year's mean temperature is the same amount higher than it was...redundant

C. Forecasts are for the average global temperature to be 0.5 degrees Celsius higher in 50 years than today's because today's mean temperature is the same amount higher than it was...years mean temp is compered with one day's

D. It has been forecast that the average global temperature will be 0.5 degrees Celsius higher in 50 years because this year's mean temperature is the same amount higher than what it was we can use it in two differant contexys... here first It is used as place holder and second it is used as "las year mean tempt"

E. It is forecast that the average global temperature will rise 0.5 degrees Celsius higher in 50 years than this year's because this year's mean temperature is the same amount higher than it was
..... same as D
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the average global temperature is forecast to be 0.5 degrees Celsius higher in 50 years because this year's mean temperature is the same amount higher than that of 50 years ago.


A. The average global temperature is forecast to be 0.5 degrees Celsius higher in 50 years because this year's mean temperature is the same amount higher than that of ------------------- “higher than that of” correct usage and construction. CORRECT

B. The average global temperature is forecast to rise 0.5 degrees Celsius higher in 50 years over this year because this year's mean temperature is the same amount higher than it was -------------------------- “to rise --- higher” redundant. “…than it was” points to this year’s mean temp is higher that it was 50 years ago???? What is that? INCORRECT

C. Forecasts are for the average global temperature to be 0.5 degrees Celsius higher in 50 years than today's because today's mean temperature is the same amount higher than it was ------------ again “than it was” indicates that today’s mean temp is same amount higher than today’s mean temp was 50 years ago. INCORRECT

D. It has been forecast that the average global temperature will be 0.5 degrees Celsius higher in 50 years because this year's mean temperature is the same amount higher than what it was ------------- passive? Why do we need passive? Again “than it was” has same issue as B and C. INCORRECT

E. It is forecast that the average global temperature will rise 0.5 degrees Celsius higher in 50 years than this year's because this year's mean temperature is the same amount higher than it was ------- “it” has no referent. “than it was” has the same issue as B, C and D. INCORRECT
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