This diagram shows types of ecosystems near the Sonoran Desert and Chihuahuan Desert. How is a thornscrub ecosystem different from a desert.
O A. The thornscrub occurs at a lower elevation
B. The thornscrub receives more sunlight
C. The thornscrub receives more rain
D. The thornscrub has sand dunes

the thornscrub occurs at a lower elevation

Explanation:

what i think is the sonoran desert is thought to have the greatest species diversity of any landscape diversity in the sonoran desert rivals that of anynother terrestrial ecoregation on earth the sonoran desert grades into  the chihuahuan desert to the east and thorn scrub is composed primarily of small trees.