A predicate adjective follows a linking verb and describes the subject. 'Sweet' follows the linking verb 'smell' and describes 'flowers'.

Here, 'swimming' is a gerund (noun form) used to describe the purpose of the 'pool'. It acts as a noun adjunct or attributive noun.

'Judge' refers to a person who can be seen and heard, making it a concrete noun, whereas 'integrity' is an abstract noun.

Here, 'still' describes the noun 'water', meaning motionless or calm. Therefore, it is an adjective.

'Still' modifies the verb 'waiting', indicating that the action is continuing in time. It functions as an adverb of time.

The word 'water' is used here to describe the action of pouring water onto plants, functioning as a verb.

In this context, 'only' modifies the verb 'slept' (or the phrase 'slept for an hour'), limiting the action. Thus, it acts as an adverb.

Here, 'only' modifies the noun 'person', describing a specific attribute of the noun. Therefore, it functions as an adjective.

'Worst' is the superlative form of 'bad', used to compare three or more things.

'Each' modifies the noun 'student', distinguishing individuals. It functions as a distributive adjective or determiner.