Completion
Igneous rocks of dark color are generally rich in the chemical elements ____________________ and ____________________, while those of light color are generally rich in ____________________ and ____________________.

Question

Completion 
Igneous rocks of dark color are generally rich in the chemical elements ____________________ and ____________________, while those of light color are generally rich in ____________________ and ____________________.

Quizplus · Accepted Answer

The Answer of Completion 
Igneous rocks of dark color are generally rich in the chemical elements ____________________ and ____________________, while those of light color are generally rich in ____________________ and ____________________.

Completion Igneous Rocks of Dark Color Are Generally Rich in the in the Chemical