How can changing the scale of analysis could change the interpretation or understanding of data?

Can someone me? i need to have this done as soon as possible! i'm putting 20 points on this!

Which statement about portugal is not true? a. it granted independence to its last colony in 1975 b. it has avoided conflict with spain c. it was a leader in european world exploration in the 1400s d. its economy is changing from agricultural to industrial b. it has avoided conflict with spain

Soil color only reflects the amount of organic matter present in soil.