Final answer:
Camels and oases are the two things that made it possible to live in the desert.
Step-by-step explanation:
The two things that made it possible to live in the desert are camels and oases.
Camels are well-adapted to desert environments. They have the ability to store water in their humps, allowing them to survive for long periods without drinking. Their feet and eyelashes are also adapted for walking in sandy conditions.
Oases are areas in the desert where underground water sources reach the surface. They provide water and fertile land for human settlements and agriculture. Without oases, it would be difficult to sustain prolonged life in the desert.