What is an nonconformity?

a. an intrusion that runs between rock layers
b. an intrusion that cuts across another rock
c. when a sedimentary rock is deposited on top of an eroded non-sedimentary rock
d. when a sedimentary rock is deposited on top of an eroded sedimentary layer

Adaptive radiations can be a direct consequence of four of the following five factors. selectthe exception. a) vacant ecological niches b) genetic drift c) colonization of an isolated region that contains suitable habitat and few competitor species d) evolutionary innovation e) an adaptive radiation in a group of organisms (such as plants) that another group uses as food