The temperature at FL 160 is -22°C. What will the temperature be at FL 90 if the ICAO standard lapse rate is applied ?

Question 444, Meteorology - ATPL - Airline Transport Pilot license

-4°C

-8°C

What will the temperature be at FL 90 if the ICAO standard lapse rate is applied ? -4°C -8°C +4°C

0°C