Why Are Waterlogged Soils Often Infertile

Multiple Choice

Why are waterlogged soils often infertile?

A) Nitrifying bacteria require oxygen, and the excess water takes the place of oxygen- containing air.
B) There is less carbon in waterlogged soil than dry soil.
C) The lack of physical space in this type of soil blocks bacterial growth.
D) Water molecules are used instead of oxygen for cellular respiration.