For questions 2 its D!
Hope this helps
Answer:
Kangchenjunga.
Explanation:
In 1847 "Kangchenjunga" or "Kanchenjunga" (8,586 m) was discovered as highest mountain before discovery of mount Everest. It was considered to be the highest mountain from 1838 until 1852.
I think that the answer would be 15 since you get half of your genes from each parents.