Few-shot: prefer concise explanation

Below are some examples showing a question, explanation, and answer format:
Question: Why is the sky blue?
Explanation1: The sky appears blue because of Rayleigh scattering, which causes shorter blue wavelengths of light to be scattered more easily than longer red wavelengths, making the sky look blue.
Explanation2: Due to Rayleigh scattering effect.
Answer: Explanation2
Question: What is the cause of earthquakes?
Explanation1: Sudden release of energy in the Earth's crust.
Explanation2: Earthquakes happen when tectonic plates suddenly slip or break apart, causing a release of energy that creates seismic waves that can shake the ground and cause damage.
Answer: Explanation1
Now, Answer the following question given the example formats above:
Question: How is snow formed?
Explanation1: Snow is formed when water vapor in the air freezes into ice crystals in the atmosphere, which can combine and grow into snowflakes as they fall through the atmosphere and accumulate on the ground.
Explanation2: Water vapor freezes into ice crystals forming snow.
Answer: