If the rocks are layered on a fine scale
If the rocks are homogenous
If the crystals in the rock vary in size
Marselie, provence-alpes-côte d'azur
Advantage-extra work\data to compare first data with.
Disadvantage-Your data might change over time.
<span>the study of the physical features of the earth and its atmosphere, and of human activity as it affects and is affected by these, including the distribution of populations and resources, land use, and industries.
I hope helped ^-^</span>
