Which of these is not an example of mechanical weathering?
a. waves crashing on a seashore
b. a glacier moving down a mountainside
c. a river flowing from a mountain into a valley
d. a cave forming when limestone rock is exposed to acid

In this assignment, you will analyze an example of speciation by researching the finches of the galapagos islands. then you will answer questions to construct explanations and draw conclusions based on the information you gather. someone plz !