In my past learnings, Sample size is no. of units in a population that need to be studied. The number of units can include animals, persons, or any specific or specified circumstances. Hope this helped..!
New islands, new volcanic rock and on land formed from glacial retreats.
Relative dating is used to arrange geological events, and the rocks they leave behind, in a sequence. The method of reading the order is called stratigraphy (layers of rock are called strata). Relative dating does not provide actual numerical dates for the rocks.
