How does the shape of earth compare to the planets A, B, or C?

I think that all the planets look to the same because they are all made of oval shape

When a lake, river or other aquatic  system  becomes  eutrophic, it can have serious negative effects on other organisms like fish, birds and even people.if an algal bloom is so bad that it causes wide-spread death  in  the  water, the organisms that die will all sink to the bottom and start to decompose.