Explain why agriculture leads to a net loss of nutrients in the soil.

Secondly, erosion contributes to losses of plant nutrients, which wash away with the soil particles. Because subsoils generally contain fewer nutrients than topsoils, more fertilizer is needed to maintain crop yields. ... Water infiltration is reduced, and seedlings have a harder time breaking through the soil crust.

answer; ///i believe the answer your looking for is (ribosomes);

amber has allowed scientists to study dna that has been preserved over millions of years.