Do you think scientists should or should not make scientific changes to food?

should not

Explanation:

it will ruin food

postive, comparative, superlative - good, better, best

recall how we defined nouns as words capable of having plurals and possessive endings. adjectives (and their first cousin, the adverb) also have a feature that distinguishes them. they come in three states. first, the raw adjective—in its positive state—merely describes the noun modified; it doesn’t care about how this particular person or thing stacks up against other members of the same noun class

its repetition emphasizing that the chain is his own. sorry if i am wrong.