Answer:
D. bedding
Explanation:
Bedding is the separation of layers of sediments that are uniquely different from one another in terms of colour, texture or composition. The layers of sediments that are separated in bedding are formed from sedimentary rocks that are deposited on the solid surface of the earth over a long period of time. The order of arrangement of the sediments as they are deposited helps to know the layers of beds that are older and those that are younger (based on the law of superposition).
The correct answer is:
A. carry out photosynthesis
