In the soil profile below,iron is present in both the top and bottom layer,as labeled,but why is only the second layer a reddish color?
A)The iron oxide was leached from the top layer in what was most likely a wet environment.
B)The iron oxide was leached from the top layer in what was most likely an arid environment.
C)When exposed to air,the iron oxide loses its reddish tint in what was most likely a wet environment.
D)When exposed to air,the iron oxide loses its reddish tint in what was most likely an arid environment.

Question

In the soil profile below,iron is present in both the top and bottom layer,as labeled,but why is only the second layer a reddish color? 
A)The iron oxide was leached from the top layer in what was most likely a wet environment. 
B)The iron oxide was leached from the top layer in what was most likely an arid environment. 
C)When exposed to air,the iron oxide loses its reddish tint in what was most likely a wet environment. 
D)When exposed to air,the iron oxide loses its reddish tint in what was most likely an arid environment.

Quizplus · Accepted Answer

In a wet environment, water can move through the soil profile and leach out the iron oxide from the top layer, resulting in a loss of reddish color. However, in the bottom layer, the iron oxide remains undisturbed and accumulates, leading to a reddish color. In contrast, in an arid environment, the lack of water would prevent leaching of the iron oxide from the top layer, and the reddish color would likely persist.

In the Soil Profile Below,iron Is Present in Both the Top