You can't see anything in a cave anyway however the main adaptations needed are touch and smell to stay alive and find food.
This question is incomplete, but I managed to find the rest of the sentence somewhere on the Internet.
So, the question is:
<span>Whenever William is put in a tough or challenging situation, he seems to adapt fairly well. His easy-going nature, which is believed to be inherited from his mother, allows him to adjust to change quickly and effortlessly. William appears to have a well-established temperament.
</span>The correct answer is temperament. Temperament is somebody's nature, character, personality, or just generally what a person is like and the way they behave when they are alone or surrounded by other people.
This is more of an opinion question, but I think it revealed that he was not willing to give up, and he would kill them if he had to.
Answer:
the picture is really blurry im new at this so i cant see it very well could you repost the photo

Radium ( a radioactive element having atomic number 88 ) was discovered by Marie Sklodowska Curie in year 1898.