A scientist observes that the shells of oysters this year are thinner than the shells of oysters several years ago. How could this trend be related to the use of fossil fuels?(1 point) Responses Higher levels of ozone in the ocean keep oysters from building shells. Higher levels of ozone in the ocean keep oysters from building shells. Increasingly acidic ocean water makes building shells more difficult. Increasingly acidic ocean water makes building shells more difficult. Fossil fuel spills in the ocean prevent oysters from building shells. Fossil fuel spills in the ocean prevent oysters from building shells. Lower carbon levels mean that oysters do not have enough materials to build shells.

Increasingly acidic ocean water makes building shells more difficult.

The burning of fossil fuels releases carbon dioxide into the atmosphere, which eventually gets absorbed by the oceans, leading to ocean acidification. This can make it harder for oysters to build their shells, resulting in thinner shells compared to previous years.