Outflow is the answer assuming that the underlined word is influx.
The indirect object in the sentence indicated above is "us"
<h3>What is an indirect object?</h3>
An indirect object is one that is used with a transitive verb to express who benefits from or receives something as a result of an activity.
For example, 'him' is the indirect object in 'He handed him his contact number.'
Learn more about indirect objects:
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The prepositional phrase is "on a high shelf" since ON is a preposition.
Its the first and third one
