A ____ is a dry place that has less that 25 ____ of rain every year In the day, ____ in hot ____ are usually from 20 to 35 degrees , but temperatures can be more than ____ ____ . At night, the air get very ____. Sometimes it's less that ____ Most cold deserts are warm in summer, but they are cold in ____. In summer, ____ are usually from 21 to 26 ____ centigrade. In winter, they are usually from 2 to 4 degrees. Most of the water in cold ____ comes from snow of fog. It doesn't come from ____ More than 20 ____ of the land on Earth is desert. There are many different ____ The ____, in North Africa, is the biggest ____ on Earth. It’s 9 million square ____ — that’s about as big as the USA! The Sahara has ____, rocks, and mountains. Some of the ____ ____ are 180 meters tall. The Sahara has very strong winds that make big sandstorms. The sandstorms can take plants and animals into the air! The Atacama ____ is in Peru and Chile. It’s not very ____, and it’s one of the oldest and driest ____ on Earth. It has less than 1 millimeter of rain every year! Scientists think that at one time, it didn’t rain here for ____ years. The ____ is in ____ and ____. It’s 1,300,000 square ____ and it’s in the mountains. Most of the land is rock. It’s one of the coldest ____ on Earth. In winter, the temperature can be minus 40 ____ centigrade!

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