What condition results in magma cooling and forming a “glassy” igneous rock? a.
extremely slow cooling
b.
cooling in the presence of oxygen
c.
extremely rapid cooling
d.
partial melt cooling

It would be extremely rapid cooling because it would be too fast for mineral grains to grow. basalt is the aphanitic or fine-grained equivalent of gabbro. plutonic rocks are intrusive and generally consist of mineral grains coarse enough to be readily visible in a hand sample.

please do try giving brainliest because i would like to reach the next rank.

thanks!!

A rapidly growing population increases the requirements of demographic investment which at the same time reduces the capacity of the people to save.