Examlex
What is the density of sulfur hexafluoride (SF6, 146.1 g/mol) in a cylinder at 1.5 atm and 22 C?
Native Organisms
These are species that originated in and are naturally occurring in a specific geographical area, as opposed to those that have been introduced from other areas.
Nonnative Organism
A species living outside its natural distribution area, having been introduced by human activity, either intentionally or accidentally.
Extinct Annually
The phenomenon where species of animals, plants, or other organisms disappear from the planet every year due to environmental factors, human activity, or other causes.
Environmental Dangerous
Refers to situations or conditions that pose a threat to ecological balance or public health.
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