Read the following line of verse from a poem by emily dickinson. i first/ surmised/ the hor-/ ses' heads… what is it an example of? a. iambic tetrameter b. iambic trimeter c. iambic pentameter

The correct answer is A. Iambic tetrameter

Explanation:

In poetry the structure of verses or how verses are composed is called meter, the structure of verses or meter relies on the number of feet, a foot is a combination of stressed or accented syllable and one or more syllables that are not stressed. In the case of  the line of verse form a poem of Emily Dickinson there are four feet and each of the feets that are separated from each other with slash (/); these feet are composed by a stressed syllable and only one that is not stressed, this type of combination is called "iambic", also, as there are four feet that are iambic, this verse is an example of "Iambic tetrameter" as iambic means the combination of a stress and an unstressed syllable and tetrameter means four and this verse is composed of four combinations of stressed and unstressed syllables or iambic tetramenter.

the rigid outer part of the earth, consisting of the crust and upper mantle is the lithosphere.     answer   crust and outer part of the mantle.