hello im a grade 12 student i need help in physics please help me plss provide explanation plsss

1. Directions: Given the composition of each nucleus, complete the nucleosynthesis reactions below:

a. p++ n= ___________+ y

b. 3He + D= ___________ +p+

c. 7Li +___________= 2 4He

d. +D ___________=T +p+

e +___________= 7Be + y

f. 7Be + n = ___________+p+

g. T + D= ___________ +n

h. 7Li + p+=4He + ___________

i. D + D = ___________ +n

j. T + _________= 7Li + y

2. Directions: Answer the following Question according to your own understanding.

1. Arrange the stages of the Big Bang Theory: recombination, inflation, Big Bang singularity, and nucleosynthesis.

2. Using one to two sentences each, explain the three pieces of evidence presented for the Big Bang Theory: