TOPIC: Please have a look at the following sentences....

Please have a look at the following sentences.
"Last week, an international meeting in Sacramento, California, brought together agricultural, science and environment officials."
I know the "agricultural" and "environmental" both are adjectives. But the "science" is a noun.
I'm wondering why the editor uses anoun instead of an adjective in the sentence above? I think the three words, agricultural , science and environmental, are to modify the "official". So I think we must use "scientific" instead of "science". Am I right?

You asked about whether "science" in the following sentence shouldn't be "scientific"
because, you say,"science" is a noun and "scientific" is an adjective:
"Lastn week, an international meeting in Sacramento, California, brought together agricultural, science and environmental officials."
You are right in thinking that we could use "scientific" in the sentence to parallel
"agricultural" and "environmental", which are both adjectives. But don't forget that we can use many nouns as adjectives as well, and in this case, it is definitely correct to talk about "acience officials", which would mean that the offficials have something to do with science (maybe they are scientists or science administration). However, if we say "scientific officials," that could mean the officals follows a scientific method and not necessarily that they have anything to do with science. So, the writer chose his/her words carefully to indicate that the officials work in science(not just that they follow a scientific method.)