Question

The stratosphere is said to be ideal for flying jet aircraft because ____________________.

• A. the aircraft in this layer goes out of the firing range of antiaircraft gun
• B. the layer is free from violent weather change
• C. the temperature is constant and ideal for aircraft engine efficiency
• D. All of these

Answer 1

The correct option is C the temperature is constant and ideal for aircraft engine efficiency

Commercial jet air craft fly in the lower stratosphere to avoid the turbulence which is common in the troposphere below. ... Because of this, few clouds are found in this layer; almost all clouds occur in the lower,and the temperature reamains constant, more humid troposphere. Polar stratospheric clouds (PSCs) are the exception.

The correct answer is C .