
Answer:
2.8 miles higher the plane go without leaving the troposphere?
Step-by-step explanation:
Troposphere height on different locations= 6-12 miles Â
plane altitude at present flight = 5.8 miles. Â
Troposphere deepness from the present flight= 8.6 miles Â
So  from present altitude till troposphere=  8.6-5.8= 2.8 miles Â