The answer is D. Enzymes in the body need to be around the pH level of 7 to function best, and if the blood drifts too far away, some enzymes stop working all together
This is true because other organisms are lower in the food chain
Fossils can be found in the Earth's crust.
The crust is the thinnest layer of the Earth. The fossils are most probably be found in this layer because it is the outermost layer. Also, the deeper the layer of the Earth, the higher the temperature that it has, and it probably cannot preserve the fossil.
