Action noun vs Simple verb (MGMAT-SC)

[rohitowe99]

MGMAT-SC Chapter11, Problem Set-8

Correct answer in book-
The weight of the carbon emissions from cars is higher in summer than in winter.

We can see that this sentence uses an action noun (weight) and a generic verb (is). I thought the above usage was less preferred to a simple verb usage such as-

The carbon emissions from cars weigh more in summer than in winter.

Please explain.

Thanks!
Deepak

[RonPurewal]

MGMAT-SC Chapter11, Problem Set-8

Correct answer in book-
The weight of the carbon emissions from cars is higher in summer than in winter.

We can see that this sentence uses an action noun (weight) and a generic verb (is). I thought the above usage was less preferred to a simple verb usage such as-

The carbon emissions from cars weigh more in summer than in winter.

Please explain.

Thanks!
Deepak

"Weight" is not an action noun; it's like "size" or "height" or "diameter" or ... anything else like that.

There's no action noun for "to weigh", other than just "the weighing..."
so, if you had a sentence in which you actually wanted an action noun for "weigh", then that's how you would have to write it.
e.g.
The weighing of boxers before a title bout has become a public spectacle.

[rohitowe99]

Thanks a lot Ron. I got your point.
I also wanted to know that which of the following sentences will get a priority in GMAT:

(A)The weight of the carbon emissions from cars is higher in summer than in winter.

(B)The carbon emissions from cars weigh more in summer than in winter.

[jlucero]

I'm not sure there would be a preference on the GMAT's side here. Regardless, since both are correct grammatically, don't spend time looking at a split like this on the GMAT, instead spend time searching for more important splits.