Answer:1000 km is longer than 1000 mm because 1 kilometer (km) is equal to 1,000,000 millimeters (mm).
Answer:1000 km is longer than 1000 mm. Here's why: - Kilometers (km) are a unit of measurement for distance, and 1 kilometer is equal to 1000 meters.- Millimeters (mm) are a unit of measurement for length, and 1 meter is equal to 1000 millimeters. Therefore: - 1000 km = 1000 * 1000 meters = 1,000,000 meters- 1000 mm = 1 meter Since 1,000,000 meters is much larger than 1 meter, 1000 km is significantly longer than 1000 mm.