In which layer of atmosphere does commercial aircrafts usually fly?

Related Mcqs:

SI unit of time is_________?

A. second B. kilo gram C. meter D. volt...

The post-mortem examination of a body is called __________?

A. Etymology B. autopsy C. Anatomy D. None of these...

Which Gas is included in Fry Chips Packets for safety?

A. Nitrogen gas B. Carbon dioxide C. Oxygen D. Hydrogen...

The most magnificent and brightest star is ?

A: Sun B: Sirius C: Pistol D: Canopus...

Fat is digested in which part of body?

a) Small intestine  b) Mouth c) Large intestine d) Spleen...