Plz help me it is due soon

Sam and ben have discovered some strange animals living in the woods behind their house. ben is excited because he believes they are marsupials, an animal he's never observed in the wild before. his brother is sure it is not. what feature should the boys consider in deciding whether the animals are marsupials?

Explain at least three factors economists consider the measurement of success, or shortcomings, of the economy? and give examples.

Why have the aztec ruins in mexico city not been dug up?