(Please help, will mark brainliest to whoever answer helps!) Continuing her study of soil, Mara wants to study the composition of some soil samples from two different regions of her state. She places one cup of each sample into a large jar. She slowly adds water until it is near the top. She stirs the water and the soil thoroughly, and then lets the soil sit overnight. She creates this image to record her results. Compare the ratio of materials in the two soil samples and, based on your knowledge of soil formation, explain how the differences in soils possibly came about. (do not do this just for the points.)

Which of the following initial observations would more directly lead to this research study? a) ginko biloba is cost effective and also possesses heart-protective, antioxidant, anti-inflammatory properties. b) metformin is an effective treatment of patients with t2d, but shows side effects that complicate the disease state. c) over the past several years, the cost of treating t2d within the united states has increased dramatically. d) many plants contain molecules that improve the health and quality of life of patients with a variety of diseases like t2d. e) t2d affects millions of individuals in the usa and worldwide many of who could benefit from improved therapies.