A river basin has an area of 2000 km². If the average rainfall is 800 mm per yea
Practice Questions
Q1
A river basin has an area of 2000 km². If the average rainfall is 800 mm per year, what is the total volume of water received by the basin in cubic meters? (2000)
1.6 billion m³
1.2 billion m³
1 billion m³
800 million m³
Questions & Step-by-Step Solutions
A river basin has an area of 2000 km². If the average rainfall is 800 mm per year, what is the total volume of water received by the basin in cubic meters? (2000)
Step 1: Understand the area of the river basin, which is given as 2000 km².
Step 2: Convert the area from square kilometers to square meters. 1 km² = 1,000,000 m², so 2000 km² = 2000 × 1,000,000 m² = 2,000,000,000 m².
Step 3: Understand the average rainfall, which is given as 800 mm per year. Convert this to meters. 800 mm = 800 / 1000 m = 0.8 m.
Step 4: Calculate the total volume of water received by the basin using the formula: Volume = Area × Rainfall.
Step 5: Substitute the values into the formula: Volume = 2,000,000,000 m² × 0.8 m.
