What resources does Mexico have that add to their economy?
All of them do; however in terms of revenue from exports, oil is the most important among them.
How the natural resources and climate of mexico have helped to contribute to the level of development?
Natural resources and climate don't correlate with level of development. For example, Brazil in South America is five times the size of Mexico with plenty of agricultural and mineral resources; yet, it is in worse shape -- e.g. less development -- than Mexico. On the other hand, Japan which is the third largest economy in the world, has a colder climate and fewer resources than Mexico but has one of the highest living standards in…