Some VOCs are even known to be carcinogenic, like benzene in tobacco smoke, perchloroethylene (aka perc) in dry-cleaning fluid, methylene chloride in paint strippers, and formaldehyde in pressed wood products like particleboard.
  The largest plant families are: Asteraceae (Sunflower family) ~24,000 species Orchidaceae (orchid family) ~20,000 species Fabaceae (Legume family) ~18,000 species â¦ Poaceae (grass family) ~10,000 species Rubiaceae (coffee family) ~10,000 species.oover Dam is the largest hydro electric dam in the world. This Is Totally Wrong. The Largest Hydro-Electric Dam In North America Is The Mighty Grand Coulee Dam In The State O â¦ f Washington Which Produces 3 Times The Megawatts As Hoover Dam. Grand Coulee Produces 6,809 megawatts And Hoover Dam Only 2,078 megawatts.
The oak family is one of the largest in the world. White Oak: This tree is distinguished by its grayish-brown bark and majestic beauty. Unlike its cousins, the white oak's branches are not as twisted and gnarled. The tree produces rich green leaves and slender acorns that vary in color from light green to tan.