Explain the difference between cross-hatching and impasto in creating a sense of texture. why would an artist select one over the other?

Cross-hatching is made by shading with two or more sets of intersecting parallel lines.
Impasto is where paint is applied with heavy strokes and a lot of it with each stroke. This technique creates uneven texture with a lot on paint.
When trying to create a sense of texture, impasto would be more useful.

The linear perspective changed the quality of art because it gave art a sense of reality. it gave the illusion that the background and surroundings were actually close and/or far and a sense of depth. linear perspective change the quality of art following its birth the renaissance period as they want the art to be more realistic and they believe one way to achieve it is to use the method of linear perspective. it uses the principle of math to realistically portray space and depth in art.