Technician a says that you can check a leaking head gasket using a chemical tester. technician b says that you can find a leaking head gasket using an exhaust analyzer. who is correct?
a. technician a
b. neither technician a nor b
c. technician b
d. both technicians a and b
need answer fast plz
answer is not c. technician b

it becomes positively charged by charging it

answer: the exterior temperature of commercial jet planes as they leave the stratosphere and return to the ground increases steadily.

explanation:

the lower most layer of atmosphere is troposphere which extends from 0 to 12 km above the surface of the earth. the temperature initially decreases as distance is increased from the earth's surface. commercial jets fly in lower part of the stratosphere. the stratosphere extends upto 50 km. the temperature in stratosphere starts rising again due to presence of ozone which traps the uv rays.

thus, when the planes leave the stratosphere and return to the ground, the exterior temperature increases steadily.

heat the gas and measure the pressure