What is the relationship between the distance from an object and the strength of its gravity?

I DON'T KNOW BUT CAN YOU PLS HELP ME WITH THIS

What change is needed in sentence 27?

Delete the comma after came

Change are to our

Change became to becomes

Delete the comma after weaker

the separation distance will weaken the gravitational force get weaker

Explanation:

 separation distance between the two interacting objects, more separation distance will result in weaker gravitational forces. So as two objects are separated from each other, the force of gravitational attraction between them also decreases.

(btw sorry if this was kinda hard to understand but I hope I helped!)

c. because step up transformer steps up the input voltage i.e increases the input voltage  

the number of turns are greater on the secondary side of step up transformer  

transformer does not handle dc current