in the day it gots very hot but in night it is freezing cold
Depends where the desert is. Re-ask the question giving the name of a specific desert. Generally however, deserts are scorching hot in the day and almost freezing at night.
In the day because at night it is usauly freezing.
In deserts, the temperature falls quite a lot, so it's a lot colder in the desert at night than it is in the day. It can fall below freezing.
Well, obviously, Earth isn't a frozen planet. Neither is Venus. Mercury gets much bellow freezing in the night but at day it's temperature is around 400 celsius. Mars is almost always bellow freezing. The planets keep getting colder past Earth, as it gets further and further away from the sun.
It would drop below freezing during the night and then roast during the day
Very hot during the day and freezing cold at night
One Mars day is about 24 hours 48 minutes; almost the same as Earth!
It rarely gets below freezing at night in the hot deserts. However, it can quickly get quite chilly. Humidity and clouds are rare in the desert. Without clouds and humidity to hold heat, the warmth of the day rapidly radiates back into space once the sun goes down.
Desolate, hot all day, and extremely cold all night.
The desert has such a diversity of animals ranging from cold booded lizards that sun bathe during the day, to desert owls that hunt at night for dune mice. The reason that there is such a diversity is that it is scorching hot during the day, and below freezing at night.
Warming during the day, will expand the rock. Freezing during the night, will contract the rock.