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A river flows through a region with a soil retention capacity of 20% of its volu

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Question: A river flows through a region with a soil retention capacity of 20% of its volume. If the river has a volume of 1000 m³, how much water can be retained by the soil? (2023)

Options:

  1. 100 m³
  2. 200 m³
  3. 300 m³
  4. 400 m³

Correct Answer: 200 m³

Exam Year: 2023

Solution: 

Water retained = 20% of 1000 m³ = 0.2 × 1000 m³ = 200 m³.

A river flows through a region with a soil retention capacity of 20% of its volu

Practice Questions

Q1
A river flows through a region with a soil retention capacity of 20% of its volume. If the river has a volume of 1000 m³, how much water can be retained by the soil? (2023)
  1. 100 m³
  2. 200 m³
  3. 300 m³
  4. 400 m³

Questions & Step-by-Step Solutions

A river flows through a region with a soil retention capacity of 20% of its volume. If the river has a volume of 1000 m³, how much water can be retained by the soil? (2023)
  • Step 1: Understand that the soil can retain 20% of the river's volume.
  • Step 2: Identify the volume of the river, which is 1000 m³.
  • Step 3: Calculate 20% of the river's volume by converting the percentage to a decimal. 20% as a decimal is 0.2.
  • Step 4: Multiply the river's volume (1000 m³) by the decimal (0.2) to find the amount of water the soil can retain.
  • Step 5: Perform the multiplication: 0.2 × 1000 m³ = 200 m³.
  • Step 6: Conclude that the soil can retain 200 m³ of water.
  • Soil Retention Capacity – The maximum amount of water that soil can hold, expressed as a percentage of its volume.
  • Volume Calculation – Understanding how to calculate a percentage of a given volume.
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