The Salto Grande Dam is . an important source of nuclear power
an important source of electricity in Argentina
a means of flood control for Peru
not important to the surrounding countries

one central belief of buddhism is often referred to as reincarnation -- the concept that people are reborn after dying. buddhism is a philosophy of life expounded by gautama buddha ("buddha" means "enlightened one"), who lived and taught in northern india in the 6th century b.c.