Explain how soils are form?please

according to me cells are formed through weathering processes we have three weathering processes one chemical weathering process biological weathering process and physical weathering process biological weathering process is caused by living organisms example a cow tramping and soil crushes the rocks and ends up becoming part of soil

i only have part a but here is the first one: - lewis and clark are born

- lewis marries sacajawea and clark is jealous  

- clark drowns lewis and then goes to jail

answer; acquired mainly during early childhood;