Mentor’s comment-

• In the introduction define soils in brief and their significance.
• In the body explain the process of soil formation in detail –
  The soil is one of the important components of the sustainability of an ecosystem because it is the vitally important natural medium for the growth of vegetation. The soil is one of the important
  components of the sustainability of an ecosystem because it is the vitally important natural medium for the growth of vegetation. Explain each factor in detail.
• Conclude with importance of soil in the ecosystem.