Tillage is a threat to the soil because it ruins the protective topsoil. hope it helps :)
The geography of Afghanistan made it easy for our soldiers to blend in with their uniforms making it difficult to invade if you can' see who your fighting.
They do not have lungs.
They can lay up to 250 eggs a day (one at a time YIKES!)
They are poisonous (to vertebrates)
It becomes a metamorphic rock, hence the name. Its "metamorphosis" is brought on by the heat and pressure.
