Correct Option
The correct option is A-1, B-2, C-4, D-3.
Explanation
Prehistoric artists prepared pigments by grinding naturally available rocks and minerals and mixing them with binding substances.
- Pair A: Correct. Haematite, an iron oxide mineral known as geru, was used to obtain red pigment.
- Pair B: Correct. A green variety of chalcedony was used to obtain green pigment.
- Pair C: Correct. Limestone was used as the probable source of white pigment.
- Pair D: Correct. Animal fat, gum or tree resin was used as a thick and sticky binding substance to help the pigment adhere to the rock surface. :contentReference[oaicite:0]{index=0}
Key Takeaway: Red came from haematite, green from chalcedony, white from limestone, while animal fat or resin acted as a binder.