Adiabatic heating and cooling of air does not involve the input ...

[imowrer]

Adiabatic heating and cooling of air does not involve the input or output of external heat to, or from, an air parcel.
  Indicate whether the statement is true or false

Question 2

Explain how lake-effect snow occurs.

[rnehls]

Answer to Question 1

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Answer to Question 2

As an example, when cold, dry cP or cA air from Canada moves southeastward across the Great Lakes the air mass picks up moisture, and the humidity increases. When this modified cP or cA air reaches frigid land on the leeward shores of the Great Lakes, it produces large amounts of lake-effect snow.

[imowrer]

Wow, this really help

[dyrone]

Thanks for the timely response, appreciate it