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.
With more than 10,000 domesticated and wild species, the Poaceae are the fifth-largest plant family, following the Asteraceae, Orchidaceae, Fabaceae, and Rubiaceae.Though commonly called grasses, seagrasses, rushes, and sedges fall outside this family.rasslands are estimated to constitute 20% of the vegetation cover of the Earth. Poaceae live in many other habitats, including wetlands, forests, and tundra.