1- Bioremedation (When you add a species to an ecosystem its not native to.
2- The competition for resources increased in the ecosystem.
Birds survive too. ... The traditional group Reptilia – things like lizards, crocodiles, snakes, tortoises plus many extinct groups – is not a true clade, because the common ancestor of all those animals also gave rise, at different points, to mammals and birds.
Answer:
in a vacuum to the speed of light in the material
Explanation:
<em>The index of refraction, also known as the refractive index, is the ratio of the speed of light in a vacuum to the speed of light in the material.</em>
<u>When light rays travel travels from one medium to another, it bends as a result of a change in the speed of traveling from the first medium to the second medium. </u>
The refractive index (n) of a material is calculated by:
<em> sin i/sin r</em>
Where i = the incidence angle of the traveling ray in the vacuum and r = angle of refraction.
The refractive index (n) is also given as:
<em> c/v</em>
Where c = velocity of light in the vacuum and v = velocity of light in the material.
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