Where are rocks generally the oldest?

answer:

explanation:

the oldest rocks are generally located on the continents. the rocks forms at the oceanic crust, in the subduction zone and along the mid ocean ridge are generally younger. as these rocks forms and develop by plate tectonics , volcanic activity and sedimentation process.

this protocol provides a detailed procedure for co-immunoprecipitation (co-ip) to identify protein–protein interactions.

thinking it would be d not too sure but i think it's right