Please number and state each question/statement and write a separate paragraph or paragraphs for each answer.

Describe the four-atmosphere layers that surround the earth and state in which of these layers does most weather occur.
Explain how the wind is caused, ways to detect wind direction and describe wind shear.
What are the four types of weather observations and provide an example of each observation?
What is precipitation? Describe the four types of precipitation and the aviation problems associated with precipitation.