What is the most serious consequence of hydraulic fracturing? A earthquakes B gas leaks B C water contamination D underground explosions

## Step 1<br />Hydraulic fracturing, also known as "fracking", is a method used to extract natural gas and oil from deep underground. This process involves injecting a high-pressure fluid into the ground to create fractures in the rock, allowing the gas or oil to flow out.<br />## Step 2<br />While all the options provided can be potential consequences of hydraulic fracturing, the most serious consequence is water contamination. This is because the chemicals used in the hydraulic fracturing process can potentially contaminate groundwater supplies.<br />## Step 3<br />Water contamination can have severe consequences, including the potential for drinking water to become unsafe for human consumption. This can lead to a range of health issues, including diseases and even death.<br />## Step 4<br />Therefore, the most serious consequence of hydraulic fracturing is water contamination.