How does contour farming help to reduce soil erosion?

Contour farming helps to reduce soil erosion by slowing the flow of water down fields planted on a slope.

Explanation:

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just finished the assignment

since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.