Most recently, the classification of life on Earth was changed. The research leading to this change is also the same research that provides further evidence of Darwin's theory of natural selection. What was the basic technique used to produce this most recent evidence?

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.

substitution is the answer in this case