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 coolingwhat 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

c. extremely rapid cooling  

The igneous rock develops with a glassy appearance due to the fact that these rocks are formed by the magma which is highly viscous a sudden cooling of this viscous material which leads to the loss of volatiles. The material when chilled attains the form of rock with glassy appearance and no crystallization takes place.

the formula for the conversion of temperature from degree celsius to kelvin is:

the sample of water at is converted to kelvin temperature by using the above formula as:

on comparing the two samples of water at or we can say that at and at respectively. the difference between the temperatures of two samples of water is:

hence, one can say that the sample of water at is greater than the sample of water at by .