What is the composition of the A horizon ?
a. topsoil
b. subsoil
c. bedrock
d. water
Either b or d? ^^
it is a- topsoil
The composition of the A horizon, also known as topsoil, typically consists of a mixture of organic matter, minerals, and nutrients. It is the uppermost layer of soil, and it plays a crucial role in supporting plant growth.
To get the answer to the question, you can refer to a reliable source such as a textbook or an educational website that provides information on soil horizons. These sources often explain the characteristics, composition, and function of each soil horizon in detail.