Question

B. Match the following.
1. Steel
2. Tar
3. Non-metals
4. Magma
5. Marble
(i) Metamorphic rock
(ii) Igneous rock
(iii) Iron and chromium 1
(iv) Products of coal
(v) Fuels
TA​

Answer 1

when magma cooled slowly forming crystals of the four .... They are, in decreasing quantity, 1 oxygen, 2 silicon, 3 aluminum, 4 iron, 5 ...