Air pollution is mainly caused by waste gases that _______ out of vehicles, machines, or factories.
Air pollution is mainly caused by waste gases that COME out of vehicles, machines, or factories.
Air pollution damages the plant life and biodiversity that animals depend on for (survive) ________.
Air pollution damages the plant life and biodiversity that animals depend on for SURVIVAL.
E _ _ _ _ _ _ _ _ _ animals are animals in danger of disappearing.
ENDANGERED animals are animals in danger of disappearing.