Answer: A. The soil in the floodplain is usually fertile
Explanation:
A floodplain can be defined as the flat area which is expected to receive the heavy flow of water due to neighboring water body, which may cause flood. Such floodplains have been proved to be the sites of agriculture since decades due to the rich and fertile soil. As the river or any other water body brings sediments which include essential minerals supporting the growth of the crops. This will solve the problems of daily food needs for the people being settled at the neighboring places.
The two days of the year on which neither hemisphere is tilted toward or away from the sun is called an equinox, because the equator of the Earth is directly in the center of the sun. This occurs on 20 March and 23 September. Look outside!
For much of the last quarter century, the leading theory of the driving force behind tectonic plate motions envisaged large scale convection currents in the upper mantle, which can be transmitted through the asthenosphere.
