Which of the following is an example of microevolution? a. change in allelic frequencies of fur color in a breed of dog b. antibiotic resistance increase in bacteria c. birds evolving from dinosaurs d. the formation of a new species

1. loamy sand is about 80% sand with 10% clay and defined mostly by sand particles with some clay to provide structure and fertility. the sand particles are easily visible and the soil holds structure but breaks apart easily.

2. scott sand can improve his soil quality by incorporating more silt and organic matter into the soil. peat moss and organic matter can also be incorporated.