A farmer measures the soil depth below which the soil is saturated with water. His first measurement shows the saturation level at 1.2 inches below the surface. A week later, his second measurement shows that the saturation level has dropped another 0.4 inches.

Explanation:

When a farmer measures the depth of the soil to measure the saturation point of water in the soil and found that after 1.2 inches the soil is wet but after a week the saturated soil is found at 1.6 inches. There could be many reasons for this:

1. The crops could have utilized the water present in the topsoil.

2. The water has been evaporated from the soil due to farming practices if performed in that week.

3. The water could have percolated down as the soil could be highly porous.

4. The saturation of water depends on the physicochemical factors of soil also.

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