If there is lack of water that will reduce the amount of oxygen that the place give of and it will make everything colder because of the lack in water.
The answer is global warming
The seeds she planted in the mud grew quicker because the mud is holding nutrition for the corn. The soil is a good guess to make, but the mud is more dense and moist. The water wouldn't have had more nutrients than the mud, just because the mud holds breakdown matter and other things from other plants.
