Which is the common tool of Stone Age: a) Axe b) knife c) swords

According to ohrp, a problem is an “unanticipated problem” when it meets which of the following criteria: unexpected, related or possibly related to the research, suggests that the research does not put the subjects or others at greater riskunexpected, related or possible related to the research, suggests the research puts subjects or others at greater riskunexpected, unrelated to the research but still occurring with a subject, suggests the research puts others at greater riskexpected, related or possible related to the research, suggests the research puts others at greater risk

Surfaces of paintings—such as paper, canvas, and pottery—are referred to technically as

Which is the best location for farming? ( southwest asia ) a: east of the jordan river b: central syria c: southern israel d: the coast of lebanon