What can cause harm to living things?
bacteria cigarettes Pesticides toxins steroids amoebae leeches Arsenic
A B C D E F G H
Arsenic compounds are poisonous.
Arsenic causes harm to living things
What can cause harm to living things? (A) bacteria (B) cigarettes (C) Pesticides (D) toxins (E) steroids (F) amoebae (G) leeches (H) Arsenic