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A river flows through a region with a soil erosion rate of 5 tons per hectare pe

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Question: A river flows through a region with a soil erosion rate of 5 tons per hectare per year. If the area of the watershed is 100 hectares, how much soil is eroded in a year?

Options:

  1. 500 tons
  2. 1000 tons
  3. 200 tons
  4. 300 tons

Correct Answer: 1000 tons

Solution: 

Soil eroded = Erosion rate × Area = 5 tons/hectare/year × 100 hectares = 500 tons/year.

A river flows through a region with a soil erosion rate of 5 tons per hectare pe

Practice Questions

Q1
A river flows through a region with a soil erosion rate of 5 tons per hectare per year. If the area of the watershed is 100 hectares, how much soil is eroded in a year?
  1. 500 tons
  2. 1000 tons
  3. 200 tons
  4. 300 tons

Questions & Step-by-Step Solutions

A river flows through a region with a soil erosion rate of 5 tons per hectare per year. If the area of the watershed is 100 hectares, how much soil is eroded in a year?
  • Step 1: Identify the erosion rate, which is given as 5 tons per hectare per year.
  • Step 2: Identify the area of the watershed, which is given as 100 hectares.
  • Step 3: To find the total soil eroded, multiply the erosion rate by the area: 5 tons/hectare/year × 100 hectares.
  • Step 4: Calculate the result: 5 × 100 = 500 tons.
  • Step 5: Conclude that the total soil eroded in a year is 500 tons.
  • Erosion Rate Calculation – This question tests the ability to calculate total soil erosion based on a given rate and area.
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