Predict what will happen to the image produced by a concave lens as the lens gets flatter and flatter- more like a flat piece of glass

The flatter concave lens becomes the  emergent ray moves towards being parallel two incident rays.

Explanation-

A concave lens is a lens that diverges the rays, passing through the lens, from its path thereby appearing to come from a point where image is formed these types of lenses are used by people who find trouble in seeing things that are at a distance. The flatter the lens become it moves more towards becoming a glass slab which refracts the light  such that the emergent ray is parallel two incident Ray but only from another point.  

c because the action was the roller coaster reaches bottom of hill (action) reaction would be blood tends to drain away from head

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