Question

which of these is a drawback of hydraulic fracturing? a. higher risk of acid rain damage b. higher risk of mine shaft collapse c. higher risk of earthquakes d. higher risk of oil spills

Explanation:

Hydraulic fracturing (fracking) involves injecting fluid into rock to release natural gas or oil. One of its drawbacks is the potential to induce small - to - moderate earthquakes. This is because the process can cause stress changes in the earth's crust. Acid rain is more related to sulfur and nitrogen emissions from burning fossil fuels (not directly fracking). Mine shaft collapse is associated with mining (not fracking). Oil spills are more common in oil extraction and transportation (not a direct, unique drawback of fracking compared to other oil/gas extraction methods).

Answer:

C. Higher risk of earthquakes