What are the different types of soils available on site field

Different types of soils 

How many types of soil names you know...??? And what is the best soil type... And how to choose best soil for site. So many questions in your mind right?  In this article I am gonna explain the basics things which is very essential for every site engineer before going to explain those things let's know the basic things of soil.

What is soil
What are the different types of soils available
What are the benefits and limitations of soil
Which soil type is best for construction field
How to test different types of soils
How to test the soil strength
What is the best soil strength for construction site.
What are the types of tests for calculating soil strength.