Depends on how you want to classify them. For starters, there are toxic materials (poisonous) caustic substances, such as acids and strong alkalis (eat holes in your skin) explosives (blow up) flammables/ combustibles (catch fire) and reproductive hazards (cause birth defects, mutations, sterility) and radioactives (give off ionizing radiation).
sight ,,, normal ,,, serious
harmfulness of virus
yes, they lead to more harmfulness
That 97% think that technology is good And that 3% think its bad.
yes there are different types of gills in different types of fishes.
Harmful-cans,meningitis,streptococcuslactis,rabbies,pneumonia.Useful-penicillin,e.coli,staph,yeast,poopstick.
different products we get from different types of trees
different types
what are some different types of mainframes
tv harms you in many ways but the main way is loseing your eye sight yours trully......i forgot my name
There are 15 types of different types of sharks.
different types of ali