A. C-horizon
B. D-horizon
C. A-horizon
D. B-horizon
Correct Answer:
Option D – B-horizon
The zone which is rich in iron; aluminium; magnesium and clay substances is the?
![What mas of magnesium would be obtained by passing a current of 2 amperes for 2 hours 30 mins, through molten magnesium chloride? [1 faraday = 96500C, Mg = 24]](https://erudites.ng/wp-content/plugins/contextual-related-posts/default.png "What mas of magnesium would be obtained by passing a current of 2 amperes for 2 hours 30 mins, through molten magnesium chloride? [1 faraday = 96500C, Mg = 24]")
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