Nights in the desert are not necessarily cold but they are much cooler than during the day. The lack of cloud cover and low humidity cause the daytime heat to quickly radiate back into space after the sun sets. There is nothing to hold in the heat at night.
There are hot deserts and there are cold deserts. Antarctica is the largest desert on earth and the days and nights are both bitterly cold. Hot deserts are hot during the day but quickly cool at night. Some cold deserts can be quite hot in the summer but bitterly cold in winter. The Gobi Desert is a good example.
Tropical deserts usually have a mild winter climate with few cold days or nights. Temperate deserts can be quite hot in the summer but usually have a cold winter.
cold
There are two major classes of deserts:Hot Deserts such as the Sahara, the Arabian Desert and the Mojave Desert.Cold Deserts such as Antarctica, the Gobi Desert and the Patagonian Desert.
There are hot deserts, such as the Sahara, Mojave and Kalahari and there are cold deserts such as Antarctica, the Gobi and the Patagonian Deserts.
Deserts are classified as either hot or cold deserts. Some cold deserts may get quite hot in the summer but are very cold in the winter.
The two main deserts I assume you are talking about is hot and cold deserts. The difference between them is temperature (warm moderate summers for hot deserts, low rainfall.) Cold deserts may have snowfall and much lower temperatures in the winter. Summers in cold deserts may get quite hot, however.
No, there are two major types of desert - hot and cold.
About 2/3s the deserts are hot. Others are classified as cold deserts, cool coastal deserts or cold winter deserts.
There are no cold deserts in Australia. All of the deserts in Australia are hot subtropical deserts.
YEs, both hot and cold deserts may have oases.
Hot deserts are usually sandy. Cold deserts are usually rocky