1 â¢ Ozone (O3) is an extremely reactive gas molecule composed of three oxygen atoms. â¢ 2  Ozone forms in chemical reactions in the atmosphere when nitrogen oxides (NOx) and volatile organic compounds (VOCs), also called hydrocarbons (HC), come into contact with both sunlight and heat. â¢ Ozone (O3) is an extremely reactive gas molecule composed of three oxygen atoms. â¢ 2  Ozone forms in chemical reactions in the atmosphere when nitrogen oxides (NOx) and volatile organic compounds (VOCs), also called hydrocarbons (HC), come into contact with both sunlight and heat.
Grolar bears. The offspring of a grizzly bear and a polar bear, a grolar bear is one beast you don't want to meet in the woods. Interestingly, unlike many hybrid animals on this list, grolar bears are known to occur naturally in the wild.
It is one of the most revered animals of North America. Grizzly is a sub-species of Brown bear. Black bears have claws that are almost two inches long whereas grizzlies have four inches long claws. These claws go white in time but there are also a few bears that have cream-colored claws. They are also expert swimmers.t is one of the most revered animals of North America. Grizzly is a sub-species of Brown bear. Black bears have claws that are almost two inches long whereas grizzlies have four inches long claws. These claws go white in time but there are also a few bears that have cream-colored claws. They are also expert swimmers.