The answer should be William R king
<em>Answer: In economics, the law of increasing costs is a principle that states that to produce an increasing amount of a good a supplier must give up greater and greater amounts of another good. ... If the economy is at the maximum for all inputs, then the cost of each unit will be more expensive.</em>
"Fertile," as in fertile soil or fertile land, means that the soil and land is rich in nutrients for plants, and therefore is good for farming crops.
As has been the case for nearly six decades, Tokyo remains the largest urban area in the world, with approximately 37 million.
