Which of the following is true of a rock that has the property of paleomagnetism?
a. rocks formed millions of years ago show the location of the magnetic poles at the time of their formation.
b. all rocks, regardless of when they are formed, will eventually possess the same polarity.
c. a major shift in polarity occurred in all rocks that were formed one million years ago.
d. a rock possesses a specific polarity depending on where it is formed.

the oceanic zone is typically defined as the area of the ocean lying beyond the continental shelf, but operationally is often referred to as beginning where the water depths drop to below 100 meters (328 feet), seaward from the coast to the open ocean.

explanation:

answer: national resource conservation services

national resource conservation services is the us. based approach that provides technical and financial assistance for natural resource management. nrcs society in conservation of resources by involving in activities like farmland protection, flood prevention, watershed protection, urban conservation, conserves economic and environmental conditions. it conducts soil surveys and implements the policy of natural resources management on the society.