Explanation:

Let’s break it down:

- Mulch Farming: This is when you cover the soil with organic material, like straw or leaves, to keep moisture in and stop weeds—not really about slopes or contours.

- Counter Farming: I think you meant Contour Farming. This means plowing and planting across the slope, following its natural shape. This slows water runoff and keeps soil from washing away. Perfect for slopes under 33%. This is the answer.

- Bench Terracing: Here, you cut the hill into flat steps (benches). That’s usually for much steeper land than a 33% slope.

- Integrated Farming: Combining crops, animals, maybe fish, maybe trees—but it’s more about mixed systems, not so much about farming on slopes.

- Mixed Farming: Growing crops and keeping animals on the same farm—again, nothing to do with soil erosion on slopes.

So, Contour Farming is the method you use for gentle to moderate slopes—safe, practical, and does exactly what you’re looking for.