How much percent of earths history are each of the 4 time periods?

Precambrian: 4055 million years; 88% Paleozoic: 300 million years; 7% Mesozoic: 179 million years; 4% Cenozoic: 66 million years; 1%Explanation:

I'm pretty sure 1/3 so 33% id.k use g00gle

Explanation:

i dont know it at allnow im just getting points at this pint

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.