Question

Brittany wants to use a model to study soil erosion on hills. She is told that farmers can prevent soil erosion by plowing so that their furrows run along hills instead of up or down hills. She fills a pan with dirt, packs the dirt firmly, then shapes it into parallel furrows. What should Brittany do with her pan of dirt next in order to study soil erosion? A. Prop up one end of it to make a slope and carefully pour water over it B. Shake the pan rapidly back and forth C. Set it outside and check on it every day D. Fill the pan with water, then tilt it until all the water runs out

Answer 1

A. Prop up one end of it to make a slope and carefully pour water over it.

Step-by-step explanation:

I just took the test and it was correct

Answer 2

A. Prop up one end of it to make a slope and carefully pour water over it.

Step-by-step explanation:

• Soil erosion leads to infertility of the land due to the loss of the top soil which contains soil nutrients.This leads to low production by the farmers and also reduces the crops quality and yields.

• Plowing the land up or down hills increases the rate of erosion for channels carrying runoff water flow are created easily leading to carrying of the top soil fro the top of the hill to the bottom.

• When the land furrows run along hills, water landing on top of the hill cannot form water run ways down the hill and this helps reduce erosion.