Question

Помогите пожалуйста ответить на вопрос по английской науке! Why do some types of precipitation occur only when the temperature near the ground is cold?

Answer 1

Snow can not go summer

Answer 2

Sure, I'd be happy to help you answer that question!

Some types of precipitation, like snow and sleet, occur only when the temperature near the ground is cold because of the way they form in the atmosphere.

1. Snow: Snow forms when the temperature in the atmosphere is cold enough for water vapor to freeze into ice crystals. These ice crystals then combine to form snowflakes. For snow to reach the ground, the entire column of air from the clouds to the surface must remain at or below freezing temperatures. If the temperature near the ground is too warm, the snowflakes will melt and turn into rain before reaching the surface.

2. Sleet: Sleet forms when snowflakes fall from high altitudes but then pass through a layer of warm air on their way down. This causes the snowflakes to partially melt and turn into raindrops. However, before reaching the ground, the raindrops encounter a shallow layer of cold air near the surface, causing them to refreeze into small pellets of ice known as sleet.

In summary, cold temperatures near the ground are necessary for snow and sleet to occur because they require a freezing or near-freezing environment throughout their descent from the clouds to the surface. If the ground-level temperature is too warm, snow will melt and turn into rain, and sleet won't have a chance to form.