Which of the following horizons has the most fertile soil? a- a horizon b-b horizon c-c horizon d- o horizon

A  A-horizon

Explanation:

The A Horizon is present below the O-horizon. The A-horizon is usually the top or first layer of the soil it is also called the topsoil. This soil zone is formed due to accumulation of organic matter and nutrients. It contains most of the organic matter. Thus, A-horizon has the most fertile layer of soil.

after making a punnet square using bv bv bv bv you will find that the ratio will be 9: 7 or a 128.6% probability.

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