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
e)
extremely high pressure

C

Explanation:

Glassy or vitreous textures occur during some volcanic eruptions when the lava is quenched so rapidly that crystallization cannot occur. The result is a natural amorphous glass with few or no crystals. As magma cools slowly the minerals have time to grow and form large crystals.

Your correct answer is C)  extremely rapid cooling

Explanation:

it is important to conserve water because there is very limited amount of freshwater here on earth and if we are not smart about how we use it we will only be runnning out of our supply faster than neccessarry.

fe 55.85 g/mol and h2o 18.02 g/mol.