Final answer:
The correct method for extracting salts is Solution mining, where water is used to dissolve underground salt deposits to form brine. Open-pit mining is also used when salt deposits are near the surface. For fracking, high-pressure fluids are used to extract gas and oil.
Step-by-step explanation:
The method of mining used to extract salts is C. Solution mining. This technique involves pumping water or another liquid into an underground salt deposit. The water dissolves the salt, and the resulting salt solution, known as brine, is then pumped to the surface where it can be processed and the salt extracted. However, in some cases, especially where the salt deposits are near the surface, open-pit mining may also be used.
Answering question 9, in the process of fracking, gas and oil are extracted by D. High-pressure fluids being injected underground to force out the fossil fuels.