The answer is going to be d. hope that helped
Well to find this out you need to make an equation
s+7=j
So for example if Johnny's sister is 15 then Johnny would be 22 because
s(sister's age) +7(number of years difference between their ages)=22(Johnny's age)
The answer is b. Air pollution
The answer is C. Protagonist.
Answer:
The permanent base level of a sea is the lowest level to which a sea can erode a landmass. The sea is a overflowing water 24/7 the tides also play a role
