Petrol
The name of a large bird that fits that description is "Turkey."
Some examples of six letter nouns are:animal,armory,axeman,AugustbattlebeautybranchbottlecarrotclientcousincradledangerdamageDenverdollareffortelevenenamelenginefarmerfaucetfelonyferretgallongarnetghettogreasehamlethealthheavenhockeyicicleinkjetiodineislandjacketjasperjinglejunketkaratekettlekidneykismetlaptoplegendlessonLondonmarginmiddleMondaymothernaturenephewnicklenoodleobjectomeletoptionorphanparadepigeonpillowporterpythonquarryquichequahograbbitraisinrationreasonregionsafetysailorsampleseasontalenttraveltunnelturkeyuproaruptownurchinutopiavacuumvelvetverminvirtuewafflewalruswindow,wonderyarrowyellowyogurtzigzagzipperzombiezircon
No, Nova-6 is entirely fictional, no known substance has lethal effects of that kind, and with that speed, and most likely no substance can ever exist with that lethality. [Anyone else wanting to edit this should provide a source or other significant evidence]
The layer that begins about 6 to 10 miles above the Earth is the stratosphere. This atmospheric layer is situated above the troposphere and extends to about 31 miles (50 kilometers) in altitude. The stratosphere contains the ozone layer, which absorbs and scatters ultraviolet solar radiation, playing a crucial role in protecting life on Earth.
cancer
greece
monkey
There is no word for a female relative that begins with a 't'. The words for a female relative that contain 6 letters are: Sister Mother Granny
The word strict has 6 letters and begins with s.
Famous
There is no word for a female relative that begins with a 't'. The words for a female relative that contain 6 letters are: Sister Mother Granny
Pillar
Turtle ?
Reiterate
Hecate
name of Oakland raider player with 6 letters in his name?