Question

the phoenix area of the southwestern desert typically receives 8 inches of precipitation yearly, in two seasonal patterns. even though it is an arid region, it has high biological diversity. thin - leaf trees abound, such as palo verde and desert ironwoods. wide varieties of cactus thrive, including the cholla, prickly pear, and saguaro. wildlife includes insects, reptiles, many bird species, small rodents, and other mammals. which factor in the southwestern desert ecosystem is abiotic?
o a prickly pear seed
o a fallen palo verde leaf
o a rainstorm
o a wolf spider

Explanation:

Abiotic factors are non - living components of an ecosystem. A prickly pear seed, a fallen palo verde leaf, and a wolf spider are all living or once - living (organic) entities. A rainstorm is a non - living weather event and thus an abiotic factor.

Answer:

C. a rainstorm