Which element in the southwestern desert ecosystem is abiotic?

Desert ecology is study of the abiotic factors of the deserts include the soil, rocks, minerals and sand.

Explanation:

Thus being divided into four types: hot, semiarid, coastal, and cold.

the answer to your question is c.

if you read the house of usher you should know that the house was haunted

c is having 4 valence electrons and is bonded to three hydrogens and one sulphur atom, therefore, the number of bond pair is equal to four. as all the valence electrons are used in forming the bonds so, there is no lone pair left on carbon.

s is having 6 valence electrons and is bonded to one other sulfur atom and one carbon atom, therefore, the number of bond pair is equal to 2. as only two valence electrons are used in forming the bonds so, four electrons are left. therefore, two lone pairs are present on s.