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Why do some types of precipitation occur only when the temperature near the ground is cold?

Some types of precipitation, like snow and sleet, occur when the temperature near the ground is cold because the precipitation forms as ice crystals in the cold air. As the ice crystals fall to the ground, they can remain frozen if the ground temperature is still cold. Warmer temperatures can cause the ice crystals to melt into raindrops instead.


What are three adaptations of the pasque flower?

Hairy leaves and stems help protect the plant from drying out in its arid, rocky habitat. Deep roots allow the pasque flower to withstand drought by accessing water deep in the soil. Its early spring blooming time and fuzzy seed heads help disperse seeds by wind.


What is the air temperature 2 meters from the ground in cold weather?

In cold weather, the air temperature 2 meters above the ground can be slightly warmer than the temperature at ground level due to radiational heating. However, the difference is usually minimal, often ranging from a fraction of a degree to a couple of degrees Celsius. Factors such as humidity, wind, and local geography can also influence this temperature measurement. Overall, while it might be slightly warmer at 2 meters, it generally remains close to the ground temperature during cold conditions.


Why is the ground always cold at night?

The main reason the ground is wet in the morning is because of dew (moisture condensed from the atmosphere, esp. at night, and deposited in the form of small drops upon any cool surface.) and the reason its cold is because the sun isn't above to keep the heat coming in while the ground absorbs it.


How can snow keep the ground warm?

Snow acts as an insulator, trapping a layer of air between snowflakes that helps prevent heat from escaping the ground. This trapped air reduces heat transfer between the ground and the cold air above, insulating the ground and helping to keep it warmer.