Question

The layer of earth in which aeroplanes fly
The layer of earth in which weather chang
The method of purifying water by first eva​

Answer 1

a little tricky try out read the chapter

Answer 2

Hello, here is your answer

1. 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.
2. troposphere—the layer closest to Earth's surface in which all weather occurs.
3. BoilingWater

• Purifier
• Reverse Osmosis
• Water Chlorination
• Distillation