1. The words bin and bean, rot and rat are examples of . (homonyms is not the right answer) 2. Depending on their area of origin, whales can communicate in various . (ways and methods is not the right answer)

bro

Explanation:

italian workers migrated to northern provinces

a mid-ocean ridge or mid-oceanic ridge is an underwater mountain range, formed by plate tectonics. this uplifting of the ocean floor occurs when convection currents rise in the mantle beneath the oceanic crust and create magma where two tectonic plates meet at a divergent boundary.a geomagnetic reversal is a change in a planet's magnetic field such that the positions of magnetic north and magnetic south are interchanged.