Question

at 7:15 last friday night, the city of lawton was rocked by a huge gas explosion. the damage was widespread throughout the south side of the town. seven buildings were destroyed. many more were damaged. city officials expect the cleanup costs to top ten million dollars. \it is a miracle no one was hurt,\ said judy connell, lawtons mayor. \an explosion of that size nearly always costs lives.\ city workers on the south side reported smelling gas at 4:00 p.m. friday. they spent the next few hours searching for the source of the leak. one crew had removed the sidewalk between palmer and dunn streets. it was getting dark. so they decided to go home and begin again the next day. sadly, the crew left an electric generator at the site. people all over the city heard a loud noise. many felt the ground shake. \it was like an earthquake,\ one citizen said. select the correct answer. read the passage. then choose the best prediction. an earthquake tears the gas line and causes the explosion. an electric spark from a generator causes the explosion. an open flame at the source of the gas leak causes the explosion.

Explanation:

The passage mentions that city workers smelled gas and left an electric generator at the site. An electric spark from a generator is a likely cause of the gas explosion. The passage does not mention an earthquake or an open flame at the gas leak source.

Answer:

An electric spark from a generator causes the explosion.