The presence of mica particles in soil makes it:

The correct answer is: c) Shiny.

Mica is a mineral that is made up of sheets of silicon dioxide. These sheets are very thin and can be easily separated from each other. When mica is present in soil, it can give the soil a shiny appearance.

The other options are incorrect. Sticky soil is caused by the presence of clay particles. Fertile soil is rich in nutrients that plants need to grow. Acidic soil has a pH level below 7.