The walkerton tragedy was a wake-up call for the protection of unconfined aquifers; a) true b) false. the term "loess' refers to thick deposits of wind-blown silt; a) true or b) false

the answer is the last option or letter d)

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.