Normal reversed throughout geologic time, earth's magnetic poles have reversed periodically generating a pattern in the sea floor rocks. which of these letters represents rocks that are the same age as those labeled with the red dot? select one: а. а b. b с. с

A. it is created from magma. the agents of a metamorphic rock is heat and pressure. (heat from intrusion of magma or burial)

The fact that the earth goes through natural cycles for example the ice age some scientists belive that it is just another cycle

The first immigrants to settle in what is now the united states were the ancient ancestors of modern native americans. the precise routes of those first north american immigrants are disputed, but there is no uncertainty about the fact that every human being on the continent is either a recent immigrant or a descendant of earlier immigrants. since the first immigrants came here from asia more than thirteen thousand years ago, there have been four large and easily recognizable modern waves of immigrants into the united states.