Question

insert two dashes where needed.
—
tim samaras the legendary storm chaser killed by a deadly tornado in 2013 was
known for his daring missions to collect data from passing storms.

Explanation:

Step1: Identify the non - restrictive clause

The phrase "the legendary storm chaser killed by a deadly tornado in 2013" is a non - restrictive clause that provides additional information about Tim Samaras. In English, we use em dashes (two dashes) to set off non - restrictive clauses. So we insert two dashes after "Samaras" and before "killed" to set off the non - restrictive clause "the legendary storm chaser".

Step2: Rewrite the sentence with dashes

The correct sentence is: "Tim Samaras—the legendary storm chaser killed by a deadly tornado in 2013—was known for his daring missions to collect data from passing storms."

Answer:

Tim Samaras—the legendary storm chaser killed by a deadly tornado in 2013—was known for his daring missions to collect data from passing storms.