What do i do if my baby have a yellowish thing on head?

its called cradle cap. leave it alone it falls with time,you could hurt the baby if picked and expose raw skin.

Leave it be. Go to the doctor if it doesn't go away on its own.

how is this health related

all soils contain mineral particles, organic matter, water and air the combinations determine the soil's properties – its texture, structure, porosity, chemistry and color. soil is made up of different-sized particles. sand particles tend to be the biggest.