Someone help I only need the answers of part a, b,and c

Are the earth's ocean floor and continents the same age geologically? why or why not?

Why would satellite imagery be more useful than a map in some instances? check all that apply. provides landmarks such as buildings is an overhead view of earth’s features can be used when internet is not available provides small details of roads for digital maps provides various methods of transportation to a location

If a checkpoint detects damaged dna, the checkpoint may