This question has Land and the air above it as correct before and now it's Land and all things perminently affixed to it. All the answers are correct to a degree. Very poor answers. The definition is:
Real estate is property comprised of land and the buildings on it as well as the natural resources of the land including uncultivated flora and fauna, farmed crops and livestock, water and minerals.
So far there have been 3 questions with questionable answers or incorrect answers.