The uppermost part of a soil profile is also called the organic layer which is enriched in organic materials. Hence, the region with the greatest concentration of organic material is the Top layer(A)
- The Upper layer of a soil profile consists of materials such as <em>plant roots, bacteria and fungi</em> which constitutes it's richness in organic materials.
- These layer is usually very dark and plants derive a lot of nutrient ’s required for growth here.
Hence, the top layer has the greatest concentration of organic materials.
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The answer is 7
If you substitute -7 into x you get
4-(-3) which is also 4+3
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1,2, and 3 are right but statement 4 is wrong.
The correct answer should be<span> D. It helped states create agricultural colleges to teach improved farming methods.
The act was designed to help teach farmers on how agriculture works better which is why they could study what was called "agriculture and the mechanical arts", at colleges.</span>
