TYPES OF SOIL
POOR
FERTILE TOPSOIL
UNIT 9
SOIL LAYERS
ARID
SUBSOIL
BEDROCK
UNIT 9
THE SOIL
ECOSYSTEM
ANIMALS EAT PLANT
COMPONENTS OF
SOIL
MINERALS
HUMUS
ROCKS
SLUGS AND SNAILS EAT DEAD PLANTS
HUMUS (DECOMPOSERS)
TUNNELS MADE BY WORM
AIR
WATER
ANIMALS SHELTER
ROCKS
SLATE
UNIT 9
MINERALS
GOLD
SALT
COPPERMARBLE
GRANITE

Unit 9 the top layer in the earth