Why does iambic pentameter feature in Shakespeare's plays?

Excerpt from the right decision lindsay rock telling a

Read this passage: i think of you daily, my darling, especially when it’s dark and the other men in the foxhole become silent. i like to pretend that the gunfire is a fireworks display and that you are here with me to enjoy it. who is the intended audience for this passage? a. the writers girlfriend at home b. the writers fellow soldiers c. the writers mother and father d. the writers commanding officer

The development of new inventions in the field of space travel seemed rapid. how does the word rapid function in a sentence?