Fracking is defined as

Fracking is defined as

• A. A method of refining crude oil into gasoline.
• B. A mining method that uses underground tunnels.
• C. A process that involves injected highly pressurized fluid into rocks to extract natural gas or oil.
• D. A process to capture carbon dioxide from the air.

Answer: (C)

Fracking refers to hydraulic fracturing, a method used to extract oil or natural gas from rock formations. It works by injecting a mixture of water, sand, and chemicals into deep rocks at very high pressure, creating tiny fractures in the rock. The sand acts as a proppant, keeping those cracks open so the oil or gas can flow back to the well. Other common processes mentioned are refining crude oil into fuels, mining with underground tunnels, or capturing carbon dioxide from the air—none of which describe the high‑pressure cracking of rock to release hydrocarbons. This combination of high-pressure fluid and fracturing of rock is what makes fracking able to access trapped oil or gas.

Fracking refers to hydraulic fracturing, a method used to extract oil or natural gas from rock formations. It works by injecting a mixture of water, sand, and chemicals into deep rocks at very high pressure, creating tiny fractures in the rock. The sand acts as a proppant, keeping those cracks open so the oil or gas can flow back to the well. Other common processes mentioned are refining crude oil into fuels, mining with underground tunnels, or capturing carbon dioxide from the air—none of which describe the high‑pressure cracking of rock to release hydrocarbons. This combination of high-pressure fluid and fracturing of rock is what makes fracking able to access trapped oil or gas.