Question

how are beaches formed and name some beaches


What are the differences between saline water and freshwater why does saline water differ from freshwater ​

Answer 1

Answer :-

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How are beaches formed?

• Work of waves can best be seen in the coastal areas. The depositional action of the sea waves results in the formation of beaches. The sand, gravel and pebbles brought by the waves are deposited in the coastal areas forming lovely beaches.

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Name some beaches.

• Some beaches are :- Kovalam beach, Marina beach, Juhu beach etc.

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Some differences between saline water and fresh water.

Saline water :-

• The water that contains a huge quantity of salt is called saline water.

• Saline water is found in huge waters bodies like seas and oceans.

• Saline water is unfit for human consumption.

• Saline water can't be used for household chores because of the high quantity of salt and chemicals in it.

• 97% of the water on Earth is saline water.

Fresh water :-

• The water that contains a small quantity of salt id called fresh water.

• Fresh water is found in water bodies like ponds, lakes, rivers etc.

• Humans can drink fresh water.

• Fresh water can be used for household chores.

• Only 3% of the water on Earth is fresh water.

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Answer 2

Answer:

1. Beaches are made up from eroded material that has been transported from elsewhere and then deposited by sea.For this occur ,waves must have limited energy,so beaches are formed in sheltered areas like bays. Constructive waves build up beaches as they have a strong swash and a weak backwash.
2. Salt water is denser than freshwater due to sodium chloride dissolved in it. This means that a specific volume of saltwater is heavier than the same volume of freshwater.warmer saltwater is lesser dense than colder saltwater,which results in the colder water sinking to the ocean floor.

• main differences between saline and freshwater

1. Salinity
2. Density
3. Freezing point
4. Tonicity

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