Precambrian rocks<span> are mostly covered by rock systems of more recent origin, but where visible they commonly display evidence of having been altered by intense </span>metamorphism<span>. Precambrian rocks often occur in shields, which are large areas of relatively low elevation that form parts of continental masses.</span>
A map that you can make with a raised surface is a(n) pictorial map.
If children work in factories, they miss out on education. So by banning child labor, more children can go to school.
