6. What did many European explorers in the 15th and 16th centuries want to undertake missions to Asia and India? (lesson 4.06) to expand the number of men in their country's navy
to trade for precious furs
to find gold and silver
bring back spices to Europe and sell them for a profit

JKJK daily free points, good morning bebs, have a good day, dont forget to eat and drink enough water, ily

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.

heat from the core of the earth causes convection currents to occur in the mantle. these currents slowly move the crust around.