There are deserts in many parts of the world. Most deserts are huge, dry places where only a few special plants grow. The weather can change quickly from very hot to very cold. People who visit deserts or live there have to be very careful to survive.There are deserts in many parts of the world. Most deserts are huge, dry places where only a few special plants grow. The weather can change quickly from very hot to very cold. People who visit deserts or live there have to be very careful to survive.