A farmer wants to expand his fields, but only has hills left. He is worried about water erosion because of the rate at which water is pulled down the hills during rainstorms. What can this farmer do to reduce the water erosion he fears? Use contour plowing on the hills. Install silt fences at the bottom of the hills. Rotate his crops so that there is permanent groundcover. Reshape the hills with terraces.

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explanation:

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the design of a ski jumping suit involves a trade-off between giving the skiers lift to get higher jumps and ensuring the skier does not face a lot of drag before the jump itself. an expansive suit may to lift the skier higher, but at the same time, it will also increase the air resistance. higher air resistance as the skier goes down the slope limits the speed of the jump. a big suit also increases the risk of losing balance or control, especially if there's a strong gust of wind. while technologically enhanced suits a lot, clothing is not the only factor in a ski jumper’s success. gathering speed while skiing down the slope, ensuring good speed on the ramp, and maintaining good body posture and form in the air all contribute to a ski jumper's success.