Answer:
increase
Step-by-step explanation:
The formula for the gravitation for of attraction is:
It implies that the force of attraction is inversely proportional to the square of the distance. i.e.
where;
G = gravitational constant
m = mass; &
r = distance between the two objects.
Now let's assume that the distance between is reduced from 1 to half;
Then:
Thus, the new gravitational force of attraction increased by a factor of 4.