HW ex. 16 p. 175 & ex. 17 p. 176; ex. A p. 67 & ex. B p. 67

desertification = aavikoituminen

suicide / commit suicide
insecticide
herbicide
pesticide
genocide
homicide
fungicide
spermicide

soil; It was rich, fertile soil.
land (maa meren vastakohtana); The bird was is clumsy on land.
ground; He lay on the ground.
dirt (esim. multa: Put those seeds in the dirt.)