How are proteins, carbohydrates, and fats related to the discipline of chemistry

Which type of fossil does this image depict?

If i add water to oil what will happen

Which of the following natural processes is most likely to support the formation of an underwater sinkhole? a pollution buildup from deposited minerals b limestone cave collapsing due to changes in sea level c erosion of large amounts of sand moved by ocean waves d oxidation of rock formed by chemical weathering