Direction:Explain how abiotic factors affect the intertidal zones and estuaries by filling in the blank with a correct word to complete the paragraph.

An(1)________is an area where a freshwater river or steam meets the ocean.Salty ocean water mixes with a freshwater river,resulting in(2)________,which is important because they(3)________sediments and pollutants before the fresh water from the river enters the sea or oceans.Intertidal zones on the other hand,serve as home to many kinds of birds.They are also known as foreshore or (4)________.There are abiotic factors that affects the ecosystem in a certain place.These are waves,salinity,soil and temperature.They are important in any ecosystem because they help plants to grow and animals to thrive.​