Question

question 22 of 25
which of these is a disadvantage of using natural gas?
a. it burns less cleanly than other fossil fuels.
b. it is not considered safe to use in homes.
c. scientists have developed new ways of extracting it.
d. extraction through fracking can contaminate groundwater.

Explanation:

Natural gas extraction via fracking can release harmful chemicals into groundwater, which is a significant drawback. Natural gas burns cleaner than many other fossil fuels, is generally considered safe for home use with proper precautions, and new extraction methods are not a disadvantage.

Answer:

D. Extraction through fracking can contaminate groundwater.