Can someone tell me which ones are for nitrogen cycle from these dots and for carbon cycle

How do you date a sample of rock that you suspect as being one of the earliest on earth

Actinobacteria sp. are fermenting organisms (which do you use oxygen to breathe) referred to as chemoorganohetereotrophs this means they break down organic material and convert it to inorganic material. which part of the carbon cycle does this describe

What are the 3 types of artificial cloning