Question

The fact that desert sand is very hot in the day and very cold at night is evidence that sand has

Answer 1

Answer:

sand can absorbed heat in day time and release heat at night time

Answer 2

Answer:

Sand is the biggest reason why deserts are hot during the day and cold during the night.

So blame this stuff

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Sometimes they aren't. Antarctica, for example is the biggest desert on the planet and it has the lowest temperature on the planet. But going with the example of "Hot" deserts:

Deserts are hot for two reasons:

1. Because of the lack of water, deserts cannot support much vegetation. This vegetation in photosynthesis cools the earth around it.

2. Sand cannot hold heat. The sun on a desert shines just as bright as it shines anywhere else, but sand just acts as a mirror of the sun.