Methane, answer choice d, is correct.
Answer:
Considering all the changes which have occurred due to reformers we can say that reformers had a positive impact on the problems of American society.
Some of the reformers fought for ending slavery from American society. They had secret meetings in their houses to discuss the reforms that should be taken to finish slavery. Reformers like William Loyd Garrison wrote articles so that people might take slavery as an important issue and help to fight it. The abolutionists movement brought by the reformers has a positive impact and we can see that slavery has been eradicated from American society.
Apart from this, there are many other reforms which have made American society a better place to live.
Answer:
To produce food is the correct answer.
B) Excretory System as it excretes/removes waste.
