Agricltural it involves de act an science of growin of crops nd matainance of the of natre . It is a sayin dat whn de last tree dies de last man on earth dies also implies dat man prduce carbon nd e tree produce de oxygen 2 man 2 sustain life .al e toxic which r produce by factories which gets in 2 de soil sum r absobed by e plant e risk 2 man on earth . This is the need to improve agricultural studies around e world ...