- High tide is a stage in the tide cycle process
- Low tide is a stage in the tide cycle process
- The tide cycle occurs regularly twice per day
- Therefore, high tide and low tide in the tide cycle occur twice per day

Hence, high tide and low tide in the tide cycle occur twice per day
What event happens in a daily cycle?
- High tide is a stage in the tide cycle process 
- Low tide is a stage in the tide cycle process 
- The tide cycle occurs regularly twice per day