1 2 3 4 1 _ _ _ _ 2 _ _ _ _ 3 _ _ _ _ 4 _ _ _ _ ACROSS 1) a metric unit of weight equal to one thousandth of a kilo____ 2) a tiny or scarcely detectable amount 3) a mountainous landlocked communist state in southeastern asia; achieved independence from france in 1949 4) weapons considered collectively DOWN 1) a river that rises in western new mexico and flows westward through southern arizona to become a tributary of the colorado river 2) a deep prolonged loud noise 3) (physics and chemistry) the smallest component of an element having the chemical properties of the element 4) the property of a body that causes it to have weight in a gravitational field ** Scroll down for solution. ** Are you sure you want to peek? gram iota laos arms