A team of researchers hypothesizes that capping abandoned oil and gas wells significantly reduces methane emissions in the surrounding area, making it a cost-effective way to limit greenhouse gases.
Which finding, if true, would most strongly support the team's hypothesis?
- A
Methane is a powerful greenhouse gas.
- B
Some wells were drilled decades ago.
- C
There are many abandoned wells across several countries.
- Dcheck_circle
Areas where abandoned wells were capped saw measurable drops in atmospheric methane concentrations within weeks, while comparable uncapped areas showed no change.
Explanation
A reports the predicted effect — drops in methane after capping, with comparable uncapped controls. B, C, and D are tangential.