• 1000 litres = 1 m³ - This statement is correct, as 1 cubic meter (m³) is equal to 1000 liters.
• 1 metric ton = 1000 kg - This statement is also correct, as 1 metric ton is equivalent to 1000 kilograms.
• 1 hectare = 10000 m² - This statement is correct, as 1 hectare is equal to 10,000 square meters.
• Therefore, the correct answer is (d) 1, 2 and 3, as all three statements are correct.

Directions for the following 4 (four) items: 

• Read the following two passages and answer passages. Your answers to these items should be based on the passages only.