Two bodies of water greatly affected by irrigation are-- A. Aral Sea and Colorado River

B. Black Sea and Thames River

C. Caspian Sea and Seine River

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.

the climate of each region is different from one another.

there are 28 days in feb.