As for the first part, Cost, Radiation exposure to humans, No water or heat, and unfit soil. As for the second, Astronomers, Botanists, and obviously your fair share of rocket scientists and math matitions for the way up.
I thinks it's Virginia and China because they both are spelled with upper cases
Dr. Elizabeth Blackwell was the first woman to receive a medical degree. She opened doors for womens education in medicine.
<span>They were all successful. Williams was successful in many ways. He worked hard to become a doctor at a time when the doors of the medical profession was closed</span>
