When a river enters a lake or an ocean, it slows down, losing its capacity to carry sediments, forming: ?

When a river enters a lake or an ocean, it slows down, losing its ability to transport sediments, forming a delta

Explanation:

The rivers transport sediments from birth to discharge to the sea or lakes. At the mouth you can accumulate many amounts of sediment forming a fan-shaped delta. Some of the deltas, such as the Amazon River Delta, the Grijalva River Delta, the Nile River Delta, etc., should be noted as examples. We can know three types of deltas: the deltas by the action of the rivers, by the action of the waves and by the action of the tides.

idk what the options are but

these is a strong electrostatic attraction between the ions hence a lot of energy is needed to overcome this attraction

this is why the boiling points are so high