Question

what is coal?
$125 \sqrt{?}$

Answer 1

coal is as hard as stone and is black in colour . coal is one of the fuels used to cook food.

125=√15625.

hope it helps you

Answer 2

Coal is a combustible black or brownish-black sedimentary rock usually occurring in rock strata in layers or veins called coal beds or coal seams. 

Did you know: After 50 or 60 years of decline, coal is back in fashion. 

125=√15625 ans