Assertion: benzene | /r/HasProperty | formed
Facets:
value: from human activities
type: CAUSE
value: from both natural processes
type: OTHER
value: with alternating single and double bonds
type: OTHER
Source sentences:
text: It is highly flammable and is formed from both natural processes and human activities.
text: Benzene is formed from natural processes, such as volcanoes and forest fires, but most exposure to benzene results from human activities.
text: Benzene is formed from natural processes, such as volcanoes and forest fires, but most exposure to benzene results from human activities.
text: It is highly flammable and is formed from both natural processes and human activities.
text: Benzene is formed from both natural processes and human activities.
text: This commonly seen model of aromatic rings, namely the idea that benzene was formed from a six-membered carbon ring with alternating single and double bonds (cyclohexatriene), was developed by August Kekulé (see History below).