Answer: Hold on i need to change my answer rq.
Explanation:
The Endangered Species Act is the strongest law for protecting biodiversity passed by any nation. Its purpose is to prevent the extinction of our most at-risk plants and animals, increase their numbers and effect their full recovery — and eventually their removal from the endangered list.
The first known ancestors of frogs were about 250,000,000 years ago
Ozone is good when it is in the stratosphere but bad when in the troposphere (where the weather system occurs). When in the stratosphere it help absorbs UV light from sunlight before reaching earth surface. This prevents damage to the genetic material of living organisms.
When in the troposphere, it is considered a pollutant and causes irritation of the lungs when inhaled. It also affects vegetation by reducing crop growth and yield.
The rarest genetic disorder is Hutchinson-Gilford progeria
