A dinosaur egg is a fossil. So is petrified wood.
'So' is a conjunction that depicts comparison between subjects in a sentence in this case. The use of 'so' in this sentence is incorrect because when comparing two subjects, which in this case are dinosaur egg and petrified wood, they should be in one sentence idea. When using the punctuation mark period '.' it ends the idea of the sentence in the first sentence given.
Sagacity is the quality of being wise or having good judgment. An example of sagacity is when a person refuses to get in the car with someone who has been drinking. The quality of being sage, wise, or able to make good decisions.
He literary techniques and figures of speech included in Robert Browning’s poem “My Last Duchess” include the following (highlighted with italics):