The diagram shows a shell fossil which type of fossil is shown

a .mold

b. cast

c. trace

d. imprint

cast fossil

Explanation:

a cast fossil is formed when an animal or plant or any other animals dies unlike mold fossil which is formed after the flesh and bones have deteriorated due to chemical reactions and a cavity remains in the ground surface and neither can it be a trace fossil because trace fossil only show the trace of the animal rather than any part of the animal itself as for the imprint fossil it is formed by an organism moving in such a way that it leaves a trace or track that ends up being preserved as the clay dries slowly so the shell fossil above can only be a cast fossil ... glad to help

yes its like the dead sea which is full of salt which makes you stay afloat

so yes an egg will float in salt