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.
Regardless, the number of orchid species nearly equals the number of bony fishes and more than twice the number of bird species, and about four times the number of mammal species. The family also encompasses about 6â11% of all seed plants.The largest genera are Bulbophyllum (2,000 species), Epidendrum (1,500 species), Dendrobium (1,400 species) and Pleurothallis (1,000 species).The family also includes Vanilla (the genus of the vanilla plant), Orchis (type genus), and many commonly cultivated plants such as Phalaenopsis and Cattleya.Moreover, since the introduction of tropical species into cultivation in the 19th century, horticulturists have produced more than 100,000 hybrids and cultivars.he family also includes Vanilla (the genus of the vanilla plant), Orchis (type genus), and many commonly cultivated plants such as Phalaenopsis and Cattleya. Moreover, since the introduction of tropical species into cultivation in the 19th century, horticulturists have produced more than 100,000 hybrids and cultivars.