Compared with earth, the moon a. is about the same size. b. is four times larger. c. is two times larger. d. is smaller.

d. new methods of assembly are introduced.

explanation:

this allows for the goods to be made on a larger scale. not faster because now it is shown to be made better, hence the greater productivity in the question. it is calling for something new to be introduced.

answer; ///(true)/// fusion occurs in the sun's core;