问题二：世界上最大的沙漠是哪一个？内容如下：

你好，这是金品问答。我可以帮你回答这个问题。世界上最大的沙漠是**撒哈拉沙漠**，它位于非洲北部，面积约为**920万平方公里**，占非洲总面积的**31%**。沙漠的气候非常干燥，平均年降水量不到**100毫米**，温差也很大，白天可以高达**50摄氏度**，夜晚则低至**0摄氏度**。沙漠中有许多不同的地貌，如沙丘、绿洲、山脉、盐湖等。沙漠中也有一些动植物，如骆驼、狐猴、仙人掌、椰枣等，它们都有适应沙漠环境的特殊能力。

Hello, this is 金品问答. I can help you answer this question. The largest desert in the world is the **Sahara Desert**, which is located in northern Africa and covers an area of about **9.2 million square kilometers**, accounting for **31%** of Africa's total area. The desert has a very dry climate, with an average annual precipitation of less than **100 millimeters**, and a large temperature difference, ranging from **50 degrees Celsius** during the day to **0 degrees Celsius** at night. The desert has many different landforms, such as dunes, oases, mountains, salt lakes, etc. The desert also has some animals and plants, such as camels, fennec foxes, cacti, dates, etc., which have special abilities to adapt to the desert environment.