Use the following definitions to answer the question. emerge: 1. (verb) to come up, appear immerge: 1. (verb) to sink into, immerse which sentence contains correct word usage? be sure to emerge the beaters into the bowl before turning on the mixer. the boat immerged from the fog so quickly that it nearly collided with us. the frog immerged among the water lilies to show its bulging eyes. a beautiful rainbow emerged from behind the storm clouds.

The sentence that contains correct word usage would be D, "a beautiful rainbow emerged from behind the storm clouds". The verb "to emerge" is an intransitive verb which only takes one argument, a NP occupying the subject position of the sentence.  This NP is always assigned the thematic role of theme of the sentence, that is, it is described as an argument undergoing motion of some sort. You cannot cause something to emerge, it emerges by itself. That is why sentence A is incorrect. You cannot emerge "the beaters into the bowl".

Then, "to immerge" means to immerse or to disappear as in a liquid. Sentence C is incorrect because the infitive clause depicts purpose making this subordinate clause incompatible with the main sentence since the main verb (to immerge) cannot express volition. You don't immerge to do something, you just do it.

A beautiful rainbow emerged from behind the storm clouds

This is the correct sentence because you can see that the verb takes one argument which functions as the subject of the sentence (the NP "a beautiful rainbow").  The rainbow is a inanimate object which does not have volition and the PP (prepositional phrase) "from behind the storm clouds" functions as modifier of location.

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