Yes
Yes, there have been people in the Atacama since prehistoric times, especially the Atacameño tribe. The desert is almost in a state of perpetual drought even today but people continue to live there.
No, desert horned lizards live in the deserts of the Southwest United States, not in the Atacama desert.
The Incas moved into parts of Chile, including the Atacama Desert. The Atacameno tribe was already living in the desert prior to the arrival of the Incas. There are also a number of cities along the Chilean coast as well as some smaller towns in mining areas.
For a list of the major animal life forms of the Atacama, click here.
The queca is performed by many of the Quechua Indians who live on the fringes of the Atacama Desert.
The Atacama is very barren and dry. The temperatures are mild and not hot. Few plants or animals live there.
There is no lizard species called the 'Logical Lizard' in the Atacama or any other desert in the world.
First off, the Atacama has a cool climate, unlike hot deserts. People live in the same type of home they might live in elsewhere. Water is either piped in or is delivered by an aqueduct. In very isolated areas in might be brought in by truck. Since virtually no food crops can be grown there, almost all food has to be shipped in from other locations.
Incas lived in Atacama desert.
WATER
They feel basically the same as any person living outside the Atacama. They are normal humans.
In the actual arid Atacama there are virtually no living microbes in the soil. It is completely devoid of life. The only decomposers are chemicals in the soil.