1, 24 hours a day, 1440 minutes, 86400 seconds; A year (average year) has 365 days, including 8760 hours, 525600 minutes and 3 1536000 seconds.

2. At present, my automobile odometer reading is 3 1289 km.

3. The deepest lake in the world is Lake Baikal with a depth of 1, 74 1 (174 1) meters.

The highest mountain in the world is Mount Everest, and its height is 8848.8 meters.

The largest ocean in the world is the Pacific Ocean, with an area of179968000 (179968000) square kilometers.

The longest river in China is the Yangtze River, with a total length of 6,397 kilometers.