which description best characterizes the southeast region of brazil?

a. a region with productive farmland and exciting cities

b. a region that is home to more than 180 indian groups

c. a region that is dominated by the sertão

d, a large region that is sparsely populated

The correct answer is - A. a region with productive farmland and exciting cities.

The southeastern part of Brazil is the part that is the most productive, vibrant, active, exciting, in the country. In this part, there's large areas of high quality arable land, and it is extensively used for production of multiple types of plants, both for the home market, and for export. Also, in this part we have Sao Paulo and Rio de Janeiro, which are the most populated cities in the country, where most of the economy is located, tons of carnivals and manifestations, and in general very vibrant, interesting, unique life.

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.