Explain how scientists use geologic time to determine the age of landforms. i will only give you brainlest if you post your own work not something else from

To determine the relative age of different rocks, geologists start with the assumption that unless something has happened, in a sequence of sedimentary rock layers, the newer rock layers will be on top of older ones.

answer: 4

explanation: 8

the second type of galaxy is called a barred spiral, which has a thing called a bar straddling the nucleus