Step 1 : Introduction to the question " Which is the coldest desert in the world? "
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The largest desert on Earth is Antarctica, which covers 14.2 million square kilometers (5.5 million square miles). It is also the coldest desert on Earth, even colder than the planet’s other polar desert, the Arctic. Composed of mostly ice flats, Antarctica has reached temperatures as low as -89°C (-128.2°F). The ice that covers the area is on average 2.45 kilometers (1.5 miles) thick. There is almost no vegetation in Antarctica, so the animals that live there are mostly carnivores, such as penguins, albatrosses, whales, and seals. Antarctica’s waters are abundant with sea life, including fish, krill, and sea sponges.
How can both the Sahara and Antarctica be deserts? The reason is that they both see little precipitation during the course of a year, typically around 25 centimeters (10 inches), or less. This makes them both difficult places for plants and animals to live. Both deserts have fossil evidence suggesting that this was not always true. Based on fossil evidence, the Sahara and Antarctica appear to have been the homes of many plants and animals in the past.
More Info:
education.nationalgeographic.org
Step 2 : Answer to the question " Which is the coldest desert in the world? "
Sahara desert:
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