A right angle has a measure of how many degrees?

you click your profile picture in the top right corner and it says edit profile.

colors do exist. the color of the sky is actually violet; humans percieve the color of the sky as blue.

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.