It is b because it just is
Rutherford overturned Thomson's model in 1911 with his well-known gold foil experiment in which he demonstrated that the atom has a tiny and heavy nucleus. Rutherford designed an experiment to use the alpha particles emitted by a radioactive element as probes to the unseen world of atomic structure.
Answer: Solid
Since it cuddled all together in the cylinder it must be an solid maybe a block
Most erosion is caused by winds breaking up rock
