State whether each of the following statements is true (T) or false (F).

1. All ores are rocks but all rocks are not minerals.
2. Quarrying is good for the environment.
3. Mineral fuels like coal and petroleum are found in sedimentary strata.
4. Coal is more predominant in the Canadian Shield Region than the Appalachians.
5. Chile and Peru are leading producers of copper.
6. Kolar in Karnataka has large deposits of silver.
7. Copper is an element used in almost everything.
8. Bauxite is the ore of aluminium.
9. Nuclear power can be produced from the nuclei of most elements.