A) SILVER B) STONE C) GOLD D) ROCK
A) SOLID B) GYPSUM C) GOLD D) OPAQUE
A) COPPER B) OPAQUE C) SOLID D) STONE
A) MINE B) SULFUR C) QUARRY D) OIL
A) CRUST B) COAL C) QUARRY D) COPPER
A) COAL B) QUARRY C) COPPER D) CRUST
A) CRUST B) CORE C) COAL D) COPPER
A) DIAMOND B) MOHS SCALE C) JEWELLERY D) EARTHQUAKE
A) ROOF B) MARBLE C) LORRY D) CLAY
A) CLAY B) COAL C) MARBLE D) VASE |