Tor f. an alluvial fan may form where a stream flows out of a narrow mountain valley, slows down, and deposits sediment.

This is True.
The question actually frames the definition of an alluvial fan.

The answer is true because an alluvial fan is a deposit of sediment.

Tamarind can be grown on homesteads, plantations, and wasteland or as a forest tree. methods of propagating tamarind there are two methods of propagating tamarind trees: seed propagation and vegetative propagation. seed propagation: it involves the collection, preparation and direct planting of the seed.answer from google full credit to google.