4. what’s the main difference between metallic and nonmetallic luster in minerals?

Explanation:

As against this, non-metallic minerals, usually break down into pieces, on hammering, and they cannot be drawn into wires or sheets. Metallic minerals are lustrous, i.e. they have their own shine, while non-metallic minerals are non-lustrous

b, the anti immigrant fervor

oil! is what i am assuming