The correct options are B AND D.
Agriculture was the major means of survival for men during the early days. Fluctuations in the rainfall during the course of a year may adversely affect the crops grown. If this persists for a long time it will leads to food shortage and famine.
Earthquake and eruption volcanoes are shift in the physical environment which can easily destroy any community.
Answer: President
https://www.google.com/search?q=branches+of+government&rlz=1C1CHBF_enUS794US801&sxsrf=ALeKk008rxaVGSe-InXFFJvhalNwB0gbvQ:1586306115145&tbm=isch&source=iu&ictx=1&fir=78oUbwEmZBKfkM%253A%252C8Gzxh6ZjvasbIM%252C_&vet=1&usg=AI4_-kQo6LCjnIL-MoudkQQYE_YkM_4Txg&sa=X&ved=2ahUKEwiC4v3jytfoAhUFup4KHQYgA-IQ_h0wAHoECAQQBA#imgrc=78oUbwEmZBKfkM:
I think it is answer A, Common law because it is derived from custom and judicial precedent.
New Hampshire was founded in 1629
