igneous rock becomes sedimentary rock from weather and other elements.
Explanation:
For example: When a volcano erupts and lava spews out it hardens and becomes igneous rock but when the volcano erupts again as the lava flows over the igneous rock again it becomes sedimentary rock.
An igneous rock is crushed into little shards of rock called sediment, the sediment is then packed together by other rocks or strong forces, that form together to make a Sedimentary rock
Answer: Because Watson and Crick were stealing the ideas that she made. And because if she did share it everyone would probably only acknowledged the two men and NOT Rosalind Franklin.