No final do século xix foi introduzido um novo cultivo nas lavouras. qual foi este produto e quem trabalhava nessas lavouras?

Does anyone know the answers for these

[ou.01]which of these is the most likely use of an electromagnetic wave which has wavelength shorter than microwaves but longer than visible light? o heat food safely o neat food safely o take images of bones and teeth o transmit radio and cellular phone signals o take images of bones and teeth o transmit radio and cellular phone signals o detect the location of objects which emit heat

Why is terracing used in southeast asian agriculture?