The transition of light colored moths in an original population into dark colored moths after natural selection occurs is a classic example of?

Natural selection

Explanation:

When the environment became polluted with soot from the industrial revolution, the light-colored moths became conspicuous to their predators in the environment – as opposed to black colored moths that camouflaged. Therefore the population of light-colored moths had low chances of passing their genes to the next generation because they were predated on more than black moths. Over time the black moths dominated the moth's population and the light colored moths became eliminated.

phaneritic textures in which phaner means visible so phaneritic textures are standard of impertinent volcanic rocks. these rocks crystallized gradually under the surface of earth. when the magma cools deliberately then the ores have chance to develop and produce long crystals.