Fertilizers are lost from the soil through

Teasebliss22

3 years ago

Teasebliss22
i think myschool is wrong..... understand seepage is just like irrigation, i.e creating space for the movement of erosion ......

the answer should be C, because because all the attributes there usually cause lost of soil nutrients

myschool please review

ONISAM

5 months ago

Explanation (step by step):
Fertilizers are usually dissolved in soil water, so they are mainly lost through movement of water, not air or evaporation.
Let’s check each option:
A. Sheet erosion and evaporation ❌
Sheet erosion can remove nutrients, yes
Evaporation does not remove fertilizers; it only removes water
B. Leaching, underground seepages and runoff ✅
Leaching: nutrients (especially nitrates) are washed down beyond root reach
Underground seepage: nutrients move with percolating water
Runoff: surface water carries dissolved fertilizers away
👉 This is the main and most accurate pathway
C. Sheet erosion, gully erosion and wind erosion ❌
Erosion removes topsoil, but wind erosion is not a major fertilizer-loss route
D. Wind erosion and heavy rainfall ❌
Heavy rainfall contributes indirectly, but wind erosion is not a key mechanism
Final answer:
👉 B. Leaching, underground seepages and runoff

Kalaqua

3 months ago

A. sheet erosion and evaporation – Evaporation only removes water, not the actual fertilizer nutrients like nitrates or phosphates.
B. leaching, underground seepages and run-off – This is correct:
Leaching: water dissolves soluble nutrients (like nitrates) and carries them down the soil profile.
Underground seepage: nutrients move deeper into soil, away from plant roots.
Run-off: water flow on the surface carries away soluble fertilizers.
C. sheet erosion, gully erosion and wind erosion – This removes soil particles, not specifically dissolved fertilizers.
D. wind erosion and heavy rainfall – Wind mainly moves soil, heavy rain can cause run-off, but not all fertilizer loss occurs this way.
Answer: B. leaching, underground seepages and run-off
If you want, I can also draw a simple diagram showing the three main ways fertilizers are lost—it makes it much easier to remember. Do you want me to do that?