north american countries like usa and canada have done better economic progress but other countries of the same continent are less developed? what are the reasons behind it. mention in four points.​

81 is a composite number.

b.

developed countries have tended to improve the environment, while developing countries have tended to damage it.

answerblank(1); khirbat al-mafjar,blank(2); ostracon.blank(3); //hisham,blank(4),; //lion; blank(5); gazelle;