Answered By Joe R

Lizards are ectotherms, which means they cannot automatically maintain their internal body temperatures. This is why lizards often bask in the Sun and why they have a darker coloration. These two combined factors allow them to increase their body temperatures so their cells can carry out the functions essential to their survival. As you know, albedo is a measure of reflection - increased albedo means that more solar radiation is reflected back away from the object (in this case the sand/ground). Lizards might take advantage of this to help increase their body temperatures (more solar radiation reflected onto them).

Answered By Attiya W

I am going to agree with the above answer. However, this is a thinking question as well. Albedo is reflection of the sunlight from the surface of the earth back to space. Oceans and forested areas have very low albedo because of cloud cover and vegetation. Deserts on the other hand have the highest albedo because of sand and lack of cloud cover plus vegetation. 

Now, you need to know how lizards regulate body temperature which in turn affects their metabolism. In order to keep their systems working lizards tend to move between areas with 15 degrees to 45 degrees range. This comes from areas with high albedo, I.e also high temperature areas because sand reflects a lot of sunlight. So technically speaking albedo is its own entity and lizards are using this albedo, which already exists in deserts to maintain their body temperature. This is also one of the reasons why you will see lizards in deserts mostly rather than forests and farms or cooler areas. 

Let it me know if you want further explanation.