Question

if you were to send a bottle rocket 15 kilometers up into the air which layer of the atmosphere would it be in?

Answer 1

☃ It wold be just past the rocky layer.
☃ The stratosphere is around 31 miles above earth. Therefore it is not in the stratosphere.
☃ 15 km is around 9.3 miles above earth.  
☃Merry Christmas!☃