What can cause harm to humans?
cigarettes viruses steroids air molecules assassin bugs vegetables ladybugs smoking tobacco
A B C D E F G H
Some assassin bug bites can cause an allergic, life-threatening reaction in humans.
assassin bugs cause harm to humans
What can cause harm to humans? (A) cigarettes (B) viruses (C) steroids (D) air molecules (E) assassin bugs (F) vegetables (G) ladybugs (H) smoking tobacco