So your point doesnt become invalid.
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:
False, sources of salt water are ocean, sea water, <span>Some of the ocean's salts have been dissolved from rocks and sediments below the sea floor</span>Others have escaped from the Earth's crust through volcanic vents as solid and gaseous materials.