Answer: She hopes to see if the oil is still present deep down below the surface.
Step-by-step explanation:
It 1969, there was an oil spill off the coast of Cape Cod with over 200,000 gallons of gasoline being spilled and affecting the land and wildlife for decades to come.
Most people believed that the oil would not be there long but research by people like the scientist in the picture who is taking samples of sediments, showed that the oil had seeped into the soil and was present deep below the surface.