If the soil in a riverbank has a porosity of 30% and the volume of soil is 100 m³, what is the volume of water it can hold?

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Q: If the soil in a riverbank has a porosity of 30% and the volume of soil is 100 m³, what is the volume of water it can hold?

Solution: Volume of water = Porosity × Volume of soil = 0.3 × 100 m³ = 30 m³.

Steps: 7

Step 1: Understand what porosity means. Porosity is the percentage of space in the soil that can hold water.
Step 2: Identify the porosity given in the question, which is 30%. Convert this percentage to a decimal by dividing by 100. So, 30% becomes 0.3.
Step 3: Identify the total volume of soil given in the question, which is 100 m³.
Step 4: Use the formula to find the volume of water the soil can hold. The formula is: Volume of water = Porosity × Volume of soil.
Step 5: Plug in the values into the formula: Volume of water = 0.3 × 100 m³.
Step 6: Calculate the result: 0.3 × 100 m³ = 30 m³.
Step 7: Conclude that the volume of water the soil can hold is 30 m³.