Answer:
-Commercial jet aircraft fly in the lower stratosphere to avoid the turbulence which is common in the troposphere below. The stratosphere is very dry; air there contains little water vapor. Because of this, few clouds are found in this layer; almost all clouds occur in the lower, more humid troposphere.
The statement that states have intangible boundaries is false. Your answer is B
sedimentary is a example, indious is heat sedimentary is like layers and fossils and metamorphic is pressure
