Which sentence is punctuated correctly?(1 point) Responses Scientists know that Earth has been impacted by large asteroids in the past; however, what happens if a major asteroid hits Earth now? Scientists know that Earth has been impacted by large asteroids in the past; however, what happens if a major asteroid hits Earth now? Scientists know that Earth has been impacted by large asteroids in the past however; what happens if a major asteroid hits Earth now? Scientists know that Earth has been impacted by large asteroids in the past however; what happens if a major asteroid hits Earth now? Scientists know that Earth has been impacted by large asteroids in the past however what happens if a major asteroid hits Earth now? Scientists know that Earth has been impacted by large asteroids in the past however what happens if a major asteroid hits Earth now? Scientists know that Earth has been impacted by large asteroids in the past, however what happens if a major asteroid hits Earth now?

Answer 1

The correctly punctuated sentence is:

"Scientists know that Earth has been impacted by large asteroids in the past; however, what happens if a major asteroid hits Earth now?"

This sentence uses a semicolon before "however" to separate two independent clauses and includes a comma after "however," which is appropriate in this context.