On the pH scale, 5.0 is neutral ? False 1 pts D | Question 16 Which of these sta

Question

On the pH scale, 5.0 is neutral ? False 1 pts D | Question 16 Which of these statements is trac? O Young soils are characterized by well-developed horizons O The older the soil, the more parent material influences soil characteristics. O Soils formed from volcanic parent material are often fertile Suils fom at ulh be ion DQuestion 17 1 pts A soil rich in organic material will be_ O gray O light brown yellow red O black or dark brown DQuestion 18 1 pts Which soil horizon can be found above an A horizon?

Explanation / Answer

15.(b) false

Below 7 on pH it is acidic.

16. (c) soil formed from volcanic parent are often more fertile

Because of more SOM content and more favorable soil structure.

17. (e) dark brown or black

dark browm and black colour indicates the high organic matter content in the soil.

18. (a) O

A is top soil and above it the O horizon which is mostly humus and organic decomposed matter like leaves.

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