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