Science--in order to prevent complete depletion of the ogallala aquifer, farmers drawing water out would need to reduce their use of the aquifer immediately by how much? select one: a. 10% b. 30% c. 50% d. 80%

if he does not use open the compass the a width greater than half of po, he will not be able to find the midpoint of the line, without the midpoint of the line, he will not be able to bisect the line.   to find the midpoint of a line the circles drawn with a compass must either intersect or be touching.