Answer:
The main reason airplanes fly in the stratosphere is because this is where the least amount of turbulence is found. In addition, because the stratosphere is very dry, there are fewer clouds in this layer, making for a much smoother ride overall.
Explanation:
The most important thing that the designers should take into account are the potential earthquakes - the buildings should be able to withstand the shaking of the ground.
Additionally, Earthquakes often lead to fires, so the buildings should also be fire-proof; especially not made of wood.
Finally, the possibility of a tsunami should be considered.
Answer:
mesoAmerica
Explanation:
This region is considered a cultural hearth because such key cultural practices as religion,the use of iron tools and weapons highly organized social structures,and the development of agriculture started and spread from the area.
