How does the topography of eastern Canada differ from tha western Canada?
А)
The Appalachian Highlands in the east are much younger
the western mountains.

А)

The Appalachian Highlands in the east are much younger

the western mountains

Explanation:

А)

The Appalachian Highlands in the east are much younger

the western mountains

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.

answer (a) more rain in u s and less rain in australia and asia