Cutting too often, mostly. Excess moisture can also cause a shallow root system.
No, not unless the roots are very very long.
Cherry trees have very shallow roots.
because it has such a long roots
yes it was very real i even change the roots of my hair to roots of emo grass so it would never get too long.
No, fibrous roots are shallow and spread out horizontally near the surface of the soil. They do not penetrate deep into the ground.
No cacti actually have very shallow roots because they are adapted to absorb rain water fast
Not usually. They cut the grass with their teeth. If the grass is very young, they may unroot some, but not intentionally.
your question is vague however relative to tap roots they are shallow. again alot depends on which plant. depth is proportional to bio mass.
their roots or rhizomes in mosses and ferns
Grass typically has a fibrous root system, which is shallow and spreads out horizontally near the surface of the soil. This type of root system helps grass plants quickly absorb water and nutrients from the topsoil.
Sedum is used on roofs because it has shallow roots and is not very tall. Sedum can tolerate wind periods of no rain.
If you don't want the iris, dig them up. They have very shallow roots so it won't be hard.