The amazon river floods its banks each year. why would a brazilian farmer choose to live near a river that is guaranteed to flood? the river provides the only transportation available in brazil. the beauty of the amazon attracts farmers from many different places. during the flood, much-needed water is abundant. after the flood waters recede, rich soil is left behind.

Well it would be answer D: After the flood water recede, rich soil is left behindBecause a farmer wants his soil to be rich and plentiful 

The amazon is a mighty river that flows in th brazilian states and many of the farmer still live near the river as they ar dependent on the river for the fertile landscape and the fertile agricultural system of the plantation. Thus  After the flood waters recede, rich soil is left behind.

Explanation:

It's not just the beauty of the river that attracts the farmer these rivers are a storehouse of the mega biodiversity hotspot of the world and work as the reserves and the energy potential for the lands of the South America.  The amazon rainforest is a home to the billion endemic species that live on the planet and thus this river is an important transit route for the people of the brazil. At times of floods, the water enters the lowland a the crips of the farmer get destroyed but due to this it also threatened the agricultural products.  Thus many people have adapted to this type of flooding and have developed other water tackling mechanisms and don't leave it as the river is there home and the floods recycle the natural soil reserves.

2. x2 + 8x + 12 = 0 to prove: x = -6 or x = -2