Consider the following: 1. 1000 litres = 1 m³ 2. 1 metric ton = 1000 kg 3. 1 hectare = 10000 m² Which of the above are correct?

1 m³ = 1000 litres (since 1 litre = 1000 cm³ and 1 m³ = 10^6 cm³ = 1000 litres) — correct. 1 metric ton = 1000 kg — correct. 1 hectare = 10,000 m² (a square of 100 m × 100 m) — correct. All three statements are correct.