Which of the following statements with reference to tides is/are correct ?

1. The time between the low tide and high tide, when the tide is rising, is called the flow or flood.

2. Tides are helpful in desilting the sediments.

Select the answer using the code given below :

Both statements are correct regarding the characteristics and significance of tides.

• Statement 1: The movement of water toward the shore or up an estuary as the tide rises is known as the flood tide or flow. The opposite movement, when the water level falls and moves away from the shore, is called the ebb tide.
• Statement 2: Tides are highly beneficial for navigation and maintenance of ports. The strong currents generated during tidal cycles, especially the receding ebb tide, help in desilting the sediments deposited by rivers at their mouths. This natural flushing action prevents the accumulation of silt, helping to keep the channels navigable for ships. This is particularly significant for tidal ports located on rivers, such as the Port of Kolkata on the Hooghly River.