It flows onto the land like a giant bulldozer, snapping trees like twigs.

Hello. This question is incomplete. The full question is:

A) Underline the similes, visual and sound images and metaphors in the following

it flows onto the land like a giant bulldozer, snapping trees like twigs.

it flows onto the land like a giant bulldozer, snapping trees like twigs.

Explanation:

The underlined part is similar.

The simile is a comparison made between two elements that have no relation at all, but that present a possible characteristic of comparison, thus forming a new meaning, which even subjective is capable of transmitting a clear message to the reader.

The sentence above compares an element with an excavator showing the destructive power that both possess.

no its not a run on sentence however i think you meant wet suits not sours also a run on sentence would be like surfers surf all winter long in southern california by using wet sours to keep them warm and the live their all year long  

he will find out what went wrong or happened and how.