The arrows in the image above show cause and effect. which of the models depicts an accurate cause-and-effect relationship?

a.
model a

b.
model b

c.

model c

d.
model d

A.Model A

Explanation:

Deforestation leads to desertification, this means that the deforestation is the cause and the effect is desertification. When deforestation occurs, you cut an unhealthy amount of trees from a given ecosystem, the roots keep the water from the water cycle to go away, and they make the land more humid and fertile, if you remove this natural barriers for water the water will just wash away, making the ecosystem more and more dry.

definitely a for sure. ill see and update if i get the answer

a. by accepting the election of president abraham lincoln in 1860 and convincing other southern states to do the same