Write something about ypur life in grade 7
this is for 1 points

answer; /// during daylight hours the sun heats up the ground,and at night the clouds insulate the warmth making it warmer ;

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.