Question: Approximate weight of surface 15 cm soil of one hectare field is
Options:
1 × 10⁶ kg
1.5 × 10⁶ kg
2 × 10⁶ kg
2.24 × 10⁶ kg
✅Explanation:
• The weight of soil can be calculated using the following formula:
Weight = Volume × Density
✏️Volume:
-Area = 1 hectare = 10,000 square meters
-Depth = 15 cm = 0.15 meters
-Volume = Area × Depth = 10,000 m² × 0.15 m = 1500 m³
✏️Density:
-The average bulk density of soil is approximately 1.5 g/cm³ or 1500 kg/m³
✏️Weight:
-Weight = 1500 m³ × 1500 kg/m³ = 2,250,000 kg
-This is approximately equal to 2.24 × 10⁶ kg