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.
Submarine Canyon
Submarine Canyon's are steep-sided valley canyons cut into the seabed of the continental slope.
Answer:
to live in the ring of fire is dangerous because of its full of volcano
