Answer:
GIve me more information if this question is lacking detail but I don't know what "the excerpt" is.
Explanation:
For something to be groundbreaking, or revolutionary I believe that it should advance humanity in the proper direction. The light bulb for example was a revolutionary invention. The definition of these two terms are as follows: "involving or causing a complete or dramatic change" and "breaking new ground; innovative; pioneering."
Answer:
The paragraph first says what is being compared and contrasted, then it says what they have in common by using the word "both." The phrase "on the other hand" shows that they're being contrasted.
Explanation:
Stinks are a very interesting breed of lizard that come in all shapes and sizes.
